Date: Fri, 28 Mar 14 00:16:32 GMT Subject: hep-th daily 20 new + 8 crosses received by eprepget ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ Send any comments regarding submissions directly to submitter. ------------------------------------------------------------------------------ Archives at http://arxiv.org/ To unsubscribe, e-mail To: hep-th@arXiv.org, Subject: cancel ------------------------------------------------------------------------------ received by eprepget from Wed 26 Mar 14 20:00:00 GMT to Thu 27 Mar 14 20:00:00 GMT ------------------------------------------------------------------------------ \\ arXiv:1403.6829 Date: Wed, 26 Mar 2014 20:00:01 GMT (729kb,D) Title: Universality of Long-Distance AdS Physics from the CFT Bootstrap Authors: A. Liam Fitzpatrick, Jared Kaplan, Matthew T. Walters Categories: hep-th Comments: 34+31 pages \\ We begin by explicating a recent proof of the cluster decomposition principle in AdS_{d+1} from the CFT_d bootstrap in d > 2. The CFT argument also computes the leading interactions between distant objects in AdS, and we confirm the universal agreement between the CFT bootstrap and AdS gravity in the semi-classical limit. We proceed to study the generalization to 2d CFTs, which requires knowledge of the Virasoro conformal blocks in a lightcone OPE limit. We compute these blocks in a semiclassical, large central charge approximation, and use them to prove a suitably modified theorem. In particular, from the 2d bootstrap we prove the existence of large spin operators with fixed 'anomalous dimensions' indicative of the presence of deficit angles in AdS_3. As we approach the threshold for the BTZ black hole, interpreted as a CFT scaling dimension, the twist spectrum of large spin operators becomes dense. Due to the exchange of the Virasoro identity block, primary states above the BTZ threshold mimic a thermal background for light operators. We derive the BTZ quasi-normal modes, and we use the bootstrap equation to prove that the twist spectrum is dense. Corrections to thermality could be obtained from a more refined computation of the Virasoro conformal blocks. \\ ( http://arxiv.org/abs/1403.6829 , 729kb) ------------------------------------------------------------------------------ \\ arXiv:1403.6833 Date: Wed, 26 Mar 2014 20:00:06 GMT (17kb,D) Title: The Scattering Variety Authors: Yang-Hui He, Cyril Matti and Chuang Sun Categories: hep-th math.AG Comments: 25 pages, 5 tables \\ The so-called Scattering Equations which govern the kinematics of the scattering of massless particles in arbitrary dimensions has recently been cast into a system of homogeneous polynomials. We study these as affine and projective geometries which we call Scattering Varieties by analyzing such quantities as Hilbert series, Euler characteristic and singularities. Interestingly, we find such structures as affine Calabi-Yau threefolds as well as singular K3 and del Pezzo surfaces. \\ ( http://arxiv.org/abs/1403.6833 , 17kb) ------------------------------------------------------------------------------ \\ arXiv:1403.6836 Date: Wed, 26 Mar 2014 20:00:19 GMT (34kb,D) Title: Octonions, Monopoles, and Knots Authors: Sergey A. Cherkis Categories: hep-th math-ph math.DG math.MP Comments: 21 pages, LaTeX, 1 figure \\ Witten's approach to Khovanov homology of knots is based on the five-dimensional system of partial differential equations, which we call Haydys-Witten equations. We argue for a one-to-one correspondence between its solutions and solutions of the seven-dimensional system of equations. The latter can be formulated on any G2 holonomy manifold and is a close cousin of the monopole equation of Bogomolny. Octonions play the central role in our view, in which both the seven-dimensional equations and the Haydys-Witten equations appear as reductions of the eight-dimensional Spin(7) instanton equation. \\ ( http://arxiv.org/abs/1403.6836 , 34kb) ------------------------------------------------------------------------------ \\ arXiv:1403.6837 Date: Wed, 26 Mar 2014 20:00:23 GMT (102kb,D) Title: Color structures and permutations Authors: Barak Kol and Ruth Shir Categories: hep-th Comments: 21 pages \\ Color structures for tree level scattering amplitudes in gauge theory are studied in order to determine the symmetry properties of the color-ordered sub-amplitudes. We mathematically formulate the space of color structures together with the action of permuting external legs. The character generating functions are presented from the mathematical literature and we determine the decomposition into irreducible representations. Mathematically, free Lie algebras and the Lie operad are central. A study of the implications for sub-amplitudes is initiated and we prove directly that both the Parke-Taylor amplitudes and Cachazo-He-Yuan amplitudes satisfy the Kleiss-Kuijf relations. \\ ( http://arxiv.org/abs/1403.6837 , 102kb) ------------------------------------------------------------------------------ \\ arXiv:1403.6857 Date: Wed, 26 Mar 2014 20:49:29 GMT (39kb) Title: Chiral Primaries in Strange Metals Authors: Mikhail Isachenkov, Ingo Kirsch and Volker Schomerus Categories: hep-th Comments: 42 pages, 5 figures Report-no: DESY 14-028 \\ It was suggested recently that the study of 1-dimensional QCD with fermions in the adjoint representation could lead to an interesting toy model for strange metals and their holographic formulation. In the high density regime, the infrared physics of this theory is described by a constrained free fermion theory with an emergent {\cal N}=(2,2) superconformal symmetry. In order to narrow the choice of potential holographic duals, we initiate a systematic search for chiral primaries in this model. We argue that the bosonic part of the superconformal algebra can be extended to a coset chiral algebra of the form {\cal W}_N =\SO(2N^2-2)_1/\SU(N)_{2N}. In terms of this algebra the spectrum of the low energy theory decomposes into a finite number of sectors which are parametrized by special necklaces. We compute the corresponding characters and partition functions and determine the set of chiral primaries for N \leq 5. \\ ( http://arxiv.org/abs/1403.6857 , 39kb) ------------------------------------------------------------------------------ \\ arXiv:1403.6874 Date: Wed, 26 Mar 2014 22:07:49 GMT (8kb) Title: Exact Black Hole Formation in Asymptotically (A)dS and Flat Spacetimes Authors: Xuefeng Zhang and H. Lu Categories: hep-th gr-qc Comments: Latex, 8 pages \\ We consider four-dimensional Einstein gravity minimally coupled to a dilaton scalar field with a supegravity-inspired scalar potential. We obtain an exact time-dependent spherically symmetric solution describing gravitational collapse to a scalar-hairy black hole. The solution can be asymptotically AdS, flat or dS depending on values of the cosmological constant parameter $\Lambda$ in the potential. As the advanced time $u$ increases, the spacetime reaches equilibrium in an exponential fashion, i.e., $e^{-u/u_0}$ with $u_0\sim1/(\alpha^4 M_0)^{1/3}$, where $M_0$ is the mass of the final black hole and $\alpha$ is the second parameter in the potential. Similar to Vaidya solution, at $u=0$, the spacetime can be matched to an (A)dS or flat vacuum except that at the origin a naked singularity may occur. Moreover, a limiting case of our solution gives rise to an (A)dS generalization of Roberts solution, thereby making it relevant to cosmic censorship. Our results provide a new model for studying the formation of real life black holes with $\Lambda \geq 0$. For $\Lambda<0$, it can be instead used to study non-equilibrium thermalization of certain strongly-coupled field theory. \\ ( http://arxiv.org/abs/1403.6874 , 8kb) ------------------------------------------------------------------------------ \\ arXiv:1403.6881 Date: Wed, 26 Mar 2014 22:31:16 GMT (43kb,D) Title: Chern-Simons interactions in AdS$_3$ and the current conformal block Authors: Ville Keranen Categories: hep-th Comments: 27 pages, 2 figures, comments and reference suggestions are welcome \\ We compute the four point function of scalar fields in AdS$_3$ charged under $U(1)$ Chern-Simons fields using the bulk version of the operator state mapping. Then we show how this four point function is reproduced from a CFT$_2$ with a global $U(1)$ symmetry, through the contribution of the corresponding current operator in the operator product expansion, i.e. through the conformal block of the current operator. We work in a "probe approximation" where the gravitational interactions are ignored, which corresponds to leaving out the energy momentum tensor from the operator product expansion. \\ ( http://arxiv.org/abs/1403.6881 , 43kb) ------------------------------------------------------------------------------ \\ arXiv:1403.6889 Date: Wed, 26 Mar 2014 23:14:04 GMT (9kb) Title: Landau Quantization in the Spinning Cosmic String Spacetime Authors: Celio R. Muniz, Valdir B. Bezerra and Marcony S. Cunha Categories: hep-th Comments: 13 pages. No figures \\ We analyze the quantum phenomenon arising from the interaction of a spinless charged particle with a rotating cosmic string, under the action of a static and uniform magnetic field parallel to the string. We calculate the energy levels of the particle in the non-relativistic approach, showing how these energies depend on the parameters involved in the problem. In order to do this, we solve the time independent Schroedinger equation in the geometry of the spinning cosmic string, taking into account that the coupling between the rotation of the spacetime and the angular momentum of the particle is very weak, such that makes sense to apply the Schr\"odinger equation in a curved background whose metric has an off diagonal term which involves time and space. It is also assumed that the particle orbits sufficiently far from the boundary of the region of closed timelike curves which exist around this topological defect. Finally, we find the Landau levels of the particle in the presence of a spinning cosmic string endowed with internal structure, i.e., having finite width and uniformly filled with both material and vacuum energies. \\ ( http://arxiv.org/abs/1403.6889 , 9kb) ------------------------------------------------------------------------------ \\ arXiv:1403.6904 Date: Thu, 27 Mar 2014 02:02:02 GMT (21kb,D) Title: T-duality off shell in 3D Type II superspace Authors: Martin Pol\'a\v{c}ek, Warren Siegel Categories: hep-th MSC-class: 81T30, 83E50 ACM-class: J.2 \\ We give the manifestly T-dual formulation of the massless sector of the classical 3D Type II superstring in off-shell 3D N=2 superspace, including the action. It has a simple relation to the known superspace of 4D N=1 supergravity in 4D M-theory via 5D F-theory. The pre potential appears as part of the vielbein, without derivatives. \\ ( http://arxiv.org/abs/1403.6904 , 21kb) ------------------------------------------------------------------------------ \\ arXiv:1403.6991 Date: Thu, 27 Mar 2014 12:10:55 GMT (198kb,D) Title: Stable static structures in models with galileon-like dynamics Authors: D. Bazeia, A.S. Lobao Jr, R. menezes Categories: hep-th Comments: 7 pages, 9 figures \\ We investigate the presence of static solutions in generalized models described by a real scalar field in four-dimensional space-time. We study models in which the scalar field engenders galileon-like dynamics and spontaneous symmetry breaking, inducing the presence of domain walls. The galileon-like behavior keeps to equation of motion second-order differential equation, so we focus on the presence of first-order equation that solves the equation of motion and very much help us to investigate stability on general grounds. We then illustrate the investigation with some specific examples, showing that the domain wall may become compact and that the zero mode may split. Moreover, if the model is further generalized to include k-field behavior, it may contribute to split the static structure. \\ ( http://arxiv.org/abs/1403.6991 , 198kb) ------------------------------------------------------------------------------ \\ arXiv:1403.6999 Date: Thu, 27 Mar 2014 12:35:40 GMT (9kb) Title: A class of hermitian generalized Jordan triple systems and Chern-Simons gauge theory Authors: Noriaki Kamiya, Matsuo Sato Categories: hep-th math.RA Comments: 9 pages \\ We find a class of hermitian generalized Jordan triple systems (HGJTSs) and hermitian $(\epsilon, \delta)$-Freudenthal-Kantor triple systems (HFKTSs). We apply one of the most simple HGJTSs which we find to a field theory, and obtain a typical u(N) Chern-Simons gauge theory with a fundamental matter. \\ ( http://arxiv.org/abs/1403.6999 , 9kb) ------------------------------------------------------------------------------ \\ arXiv:1403.7016 Date: Thu, 27 Mar 2014 13:16:20 GMT (14kb) Title: On AGT-W Conjecture and q-Deformed W-Algebra Authors: Masato Taki Categories: hep-th Comments: 18 pages \\ We propose an extension of the Alday-Gaiotto-Tachikawa-Wyllard conjecture to 5d SU(N) gauge theories. A Nekrasov partition function then coincides with the scalar product of the corresponding Gaiotto-Whittaker vectors of the q-deformed W_N algebra. \\ ( http://arxiv.org/abs/1403.7016 , 14kb) ------------------------------------------------------------------------------ \\ arXiv:1403.7066 Date: Thu, 27 Mar 2014 15:04:44 GMT (1613kb,D) Title: F-theory Family Unification Authors: Shun'ya Mizoguchi Categories: hep-th Comments: 43 pages, 11 figures Report-no: KEK-TH-1719 \\ We propose a new geometric mechanism for naturally realizing unparallel three families of flavors in string theory, using the framework of F-theory. We consider a set of coalesced local 7-branes of a particular Kodaira singularity type and allow some of the branes to bend and separate from the rest, so that they meet only at an intersection point. Such a local configuration can preserve supersymmetry. Its matter spectrum is investigated by studying string junctions near the intersection, and shown to coincide, after an orbifold projection, with that of a supersymmetric coset sigma model whose target space is a homogeneous Kahler manifold associated with a corresponding painted Dynkin diagram. In particular, if one starts from the E7 singularity, one obtains the E7/(SU(5)xU(1)^3) model yielding precisely three generations with an unparallel family structure. Possible applications to string phenomenology are also discussed. \\ ( http://arxiv.org/abs/1403.7066 , 1613kb) ------------------------------------------------------------------------------ \\ arXiv:1403.7131 Date: Thu, 27 Mar 2014 16:51:05 GMT (754kb,D) Title: (0,2) SCFTs from the Leigh-Strassler Fixed Point Authors: Nikolay Bobev, Krzysztof Pilch, Orestis Vasilakis Categories: hep-th Comments: 40 pages, 6 figures \\ We show that there is a family of two-dimensional $(0,2)$ SCFTs associated with twisted compactifications of the four-dimensional $\mathcal{N}=1$ Leigh-Strassler fixed point on a closed hyperbolic Riemann surface. We calculate the central charges for this class of theories using anomalies and $c$-extremization. In a suitable truncation of the five-dimensional maximal supergravity, we construct supersymmetric $AdS_3$ solutions that are holographic duals of those two-dimensional $(0,2)$ SCFTs. We also exhibit supersymmetric domain wall solutions that are holographically dual to the RG flows between the four-dimensional and two-dimensional theories. \\ ( http://arxiv.org/abs/1403.7131 , 754kb) ------------------------------------------------------------------------------ \\ arXiv:1403.7139 Date: Thu, 27 Mar 2014 17:25:44 GMT (10kb) Title: Topological Vertex, String Amplitudes and Spectral Functions of Hyperbolic Geometry Authors: M. E. X. Guimaraes (IF/UFF), R. M. Luna (DF/UEL) and T. O. Rosa (IF/UFF) Categories: hep-th gr-qc math.KT Comments: 10 pages, no figures. arXiv admin note: text overlap with arXiv:hep-th/0701156, arXiv:1105.4571, arXiv:1206.0664 by other authors \\ We discuss the homological aspects of the connection between quantum string generating function and the formal power series associated to the dimensions of chains and homologies of suitable Lie algebras. Our analysis can be considered as a new straightforward application of the machinery of modular forms and spectral functions (with values in the congruence subgroup of $SL(2,{\mathbb Z})$) to the partition functions of Lagrangian branes, refined vertex and open string partition functions, represented by means of formal power series that encode Lie algebra properties. The common feature in our examples lies in the modular properties of the characters of certain representations of the pertinent affine Lie algebras and in the role of Selberg-type spectral functions of an hyperbolic three-geometry associated with $q$-series in the computation of the string amplitudes. \\ ( http://arxiv.org/abs/1403.7139 , 10kb) ------------------------------------------------------------------------------ \\ arXiv:1403.7157 Date: Thu, 27 Mar 2014 18:13:29 GMT (22kb) Title: Conformal inflation from the Higgs Authors: Renato Costa and Horatiu Nastase Categories: hep-th astro-ph.CO hep-ph Comments: 16 pages, no figures \\ We modify the conformal inflation set-up of \cite{Kallosh:2013hoa}, with a local Weyl invariance, a dynamical Planck scale and an $SO(1,1)$ invariance at high energies, in order to be able to identify the physical scalar with the physical Higgs at low energies, similar to the cyclic Higgs models of \cite{Bars:2013vba}. We obtain a general class of exponentially-corrected potentials that gives a generalized Starobinsky model with an infinite series of $R^p$ corrections, tracing a line in the $(r,n_s)$ plane for CMB fluctuations, with an $r$ that can be made to agree with the recent BICEP2 measurement. Introducing a coupling different from the conformal value, thus breaking the local Weyl symmetry, leads nevertheless to a very strong attractor motion towards the generalized Starobinsky line. \\ ( http://arxiv.org/abs/1403.7157 , 22kb) ------------------------------------------------------------------------------ \\ arXiv:1403.7163 Date: Thu, 27 Mar 2014 18:39:05 GMT (163kb) Title: Atick-Witten Hagedorn Conjecture, near scale-invariant matter and blue-tilted gravity power spectrum Authors: Tirthabir Biswas, Tomi Koivisto, Anupam Mazumdar Categories: hep-th Comments: 5 pages, 2 figures Report-no: NORDITA-2014-37 \\ We will provide an interesting new mechanism to generate almost scale invariant seed density perturbations with a red spectrum, while keeping the gravitational wave spectrum blue-tilted in a stringy thermal contracting phase at temperatures beyond the Hagedorn temperature. This phase is often referred to as the Hagedorn phase where the free energy has been conjectured by Atick and Witten to grow more slowly than ordinary radiation. The primordial fluctuations are created by the statistical thermal fluctuations determined by the partition function, rather than quantum vacuum driven fluid dynamical fluctuations. In order for our mechanism to work we require a non-singular bouncing cosmology. \\ ( http://arxiv.org/abs/1403.7163 , 163kb) ------------------------------------------------------------------------------ \\ arXiv:1403.7167 Date: Thu, 27 Mar 2014 18:45:21 GMT (24kb) Title: More on Ramond-Ramond, SYM, WZ couplings and their corrections in IIA Authors: Ehsan Hatefi Categories: hep-th math-ph math.MP Comments: 28 pages, no figure,Latex file \\ We obtain the closed form of the correlation function of one current and four spin operators (with different chirality ) in type IIA superstring theory. The complete form of the S-matrix of one gauge , two fermions (with different chirality) and one closed string Ramond-Ramond for all order $\alpha'$ type IIA has been explored. Moreover we make use of a different gauge fixing to be able to find out all the closed forms of $$ correlators. An infinite number of $t,s-$channel fermion poles of this S-matrix in the field theory of IIA is generated. Unlike the the closed form of the correlators of the same amplitude of IIB, for various $p,n$ cases in type IIA we do have different double poles in $t,(t+s+u)$ and in $s,(t+s+u)$ channels and we produced them. We also find new Wess-Zumino couplings of IIA with their third order $\alpha' $ corrections as well as new form of higher derivative corrections (with different coefficient of its IIB one ) to SYM couplings at third order of $\alpha' $. Using them, we are able to produce $(t+s+u)$ channel scalar pole of the $$ amplitude for $p+2=n$ case. Finally we make some comments on $\alpha'$ corrections to IIA Superstring theory. \\ ( http://arxiv.org/abs/1403.7167 , 24kb) ------------------------------------------------------------------------------ \\ arXiv:1403.7185 Date: Thu, 27 Mar 2014 19:40:05 GMT (61kb,D) Title: Semistrict Higher Gauge Theory Authors: Branislav Jurco, Christian Saemann and Martin Wolf Categories: hep-th math-ph math.CT math.MP Comments: 71 pages Report-no: EMPG-14-06, DMUS-MP-14/02 \\ We develop semistrict higher gauge theory from first principles. In particular, we describe the differential Deligne cohomology underlying semistrict principal 2-bundles with connective structures. Principal 2-bundles are obtained in terms of weak 2-functors from the Cech groupoid to weak Lie 2-groups. As is demonstrated, some of these Lie 2-groups can be differentiated to semistrict Lie 2-algebras by a method due to Severa. We further derive the full description of connective structures on semistrict principal 2-bundles including the non-linear gauge transformations. As an application, we use a twistor construction to derive superconformal constraint equations in six dimensions for a non-Abelian N=(2,0) tensor multiplet taking values in a semistrict Lie 2-algebra. \\ ( http://arxiv.org/abs/1403.7185 , 61kb) ------------------------------------------------------------------------------ \\ arXiv:1403.7189 Date: Thu, 27 Mar 2014 19:54:08 GMT (1754kb,D) Title: Is Imaginary Starobinsky Model Real? Authors: Renata Kallosh, Andrei Linde, Bert Vercnocke and Wissam Chemissany Categories: hep-th astro-ph.CO gr-qc hep-ph Comments: 10 pages, 6 figures \\ We investigate the recently proposed possibility of chaotic inflation with respect to the imaginary part of the field T in a supersymmetric embedding of the Starobinsky model. We show that the stage of rapid expansion driven by Im T in this model ends almost instantly, and the subsequent stages of inflation are driven by the real part of the field T, as in the standard Starobinsky model. Thus, the Starobinsky model and its supersymmetric generalizations remain disfavored by the recent BICEP2 data. \\ ( http://arxiv.org/abs/1403.7189 , 1754kb) %-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%- ------------------------------------------------------------------------------ \\ arXiv:1403.6844 (*cross-listing*) Date: Wed, 26 Mar 2014 20:23:11 GMT (9kb) Title: Implications Of A Dark Sector U(1) For Gamma Ray Bursts Authors: Tom Banks, Willy Fischler, Dustin Lorshbough, Walter Tangarife Categories: astro-ph.HE gr-qc hep-ph hep-th Comments: 4 pages Report-no: UTTG-06-14, TCC-007-14 \\ We discuss the implications for gamma ray burst studies, of a dark unbroken $U(1)_D$ sector that couples predominantly through gravity to the visible sector. The dominant dark matter component remains neutral under $U(1)_D$. The collapsar model is assumed to explain the origin of long gamma ray bursts. The main idea is that by measuring the change in stellar black hole spin during the duration of the GRB, one can make inferences about the existence of a dark matter accretion disk. This could potentially provide evidence for the existence for a $U(1)_D$ sector. \\ ( http://arxiv.org/abs/1403.6844 , 9kb) ------------------------------------------------------------------------------ \\ arXiv:1403.6937 (*cross-listing*) Date: Thu, 27 Mar 2014 07:45:20 GMT (10kb) Title: $f(T)$ gravity theories and local Lorentz transformation Authors: G. G. L. Nashed Categories: gr-qc hep-th Comments: 12 pages \\ We modify the field equations of $f(T)$ gravity theories such that they become invariant under Local Lorentz Transformation (LLT) in the case of spherical symmetry. A "general tetrad field", with an arbitrary function of radial coordinate preserving spherical symmetry is provided. We split that tetrad field into two matrices; the first represents a LLT, which contains an arbitrary function, the second matrix represents a proper tetrad field which is a solution to the field equations of $f(T)$ gravitational theory, (which are not invariant under LLT). This "general tetrad field" is then applied to the modified field equations of $f(T)$. We show that the effect of the arbitrary function which is involved in the LLT invariably disappears. \\ ( http://arxiv.org/abs/1403.6937 , 10kb) ------------------------------------------------------------------------------ \\ arXiv:1403.6959 (*cross-listing*) Date: Thu, 27 Mar 2014 09:34:06 GMT (10kb) Title: Force-free magnectosphere on near-NHEK Authors: Huiquan Li, Cong Yu, Jiancheng Wang and Zhaoyi Xu Categories: gr-qc astro-ph.HE hep-th Comments: 11 pages, 0 figures \\ We study the force-free magnetosphere in the Blandford-Znajek process from rapidly rotating black holes by adopting the near-horizon geometry of near-extreme Kerr black holes (near-NHEK), on which the Kerr/CFT is constructed. It is shown that the Znajek regularity condition on the horizon can be directly derived from the resulting stream equation on near-NHEK, in a way other than the usual approach. We also find that the behaviour of the magnetosphere around the rotation axis can be described by a consistent solution that indicates strong convergence of energy and angular-momentum extraction on the axis. \\ ( http://arxiv.org/abs/1403.6959 , 10kb) ------------------------------------------------------------------------------ \\ arXiv:1403.7028 (*cross-listing*) Date: Thu, 27 Mar 2014 13:48:03 GMT (106kb,D) Title: Sterile neutrinos help reconcile the observational results of primordial gravitational waves from Planck and BICEP2 Authors: Jing-Fei Zhang, Yun-He Li, Xin Zhang Categories: astro-ph.CO gr-qc hep-ph hep-th Comments: 4 pages, 2 figures \\ We show that involving a sterile neutrino species in the $\Lambda$CDM+$r$ model can help to relieve the tension about the tensor-to-scalar $r$ between the Planck temperature data and the BICEP2 B-mode polarization data. Comparing to the $\Lambda$CDM+$r$ model, there are two extra parameters, $N_{\rm eff}$ and $m_{\nu,{\rm sterile}}^{\rm eff}$, in the $\Lambda$CDM+$r$+$\nu_s$ model. We show that in this model the tension between Planck and BICEP2 can be greatly relieved at the cost of the increase of $n_s$. However, comparing with the $\Lambda$CDM+$r$+$dn_s/d\ln k$ model that can significantly reduce the tension between Planck and BICEP2 but also makes trouble to inflation due to the large running of the spectral index of order $10^{-2}$ produced, the $\Lambda$CDM+$r$+$\nu_s$ model is much better for inflation. In fact, by including a sterile neutrino species in the standard cosmology, besides the Planck's tension with BICEP2, the other tensions with other astrophysical data, such as the $H_0$ direct measurement, the Sunyaev-Zeldovich cluster counts, and the galaxy shear data, can all be significantly relieved. So, this model seems to be an economical choice. Combining the Planck temperature data, the WMAP-9 polarization data, and the baryon acoustic oscillation data with all these astrophysical data(including BICEP2), we find that in the $\Lambda$CDM+$r$+$\nu_s$ model $n_s=0.999^{+0.012}_{-0.011}$, $r=0.21^{+0.04}_{-0.05}$, $N_{\rm eff}=3.961^{+0.318}_{-0.325}$ and $m_{\nu,{\rm sterile}}^{\rm eff}=0.511^{+0.120}_{-0.133}$ eV. Thus, our results prefer $\Delta N_{\rm eff}>0$ and $m_{\nu,{\rm sterile}}^{\rm eff}>0$ with high statistical significance. \\ ( http://arxiv.org/abs/1403.7028 , 106kb) ------------------------------------------------------------------------------ \\ arXiv:1403.7080 (*cross-listing*) Date: Thu, 27 Mar 2014 15:28:55 GMT (7kb) Title: Fractional quantum Hall states as an Abelian group Authors: Ali Nassar Categories: cond-mat.str-el hep-th Comments: 6 pages \\ We show that the set of double-layer Fractional Quantum Hall (FQH) states with a given topological order form a finite Abelian group under a new product. This group structure makes it possible to construct new FQH states from known ones. We also introduce a new index which can be used to characterize the topological order of FQH states. \\ ( http://arxiv.org/abs/1403.7080 , 7kb) ------------------------------------------------------------------------------ \\ arXiv:1403.7114 (*cross-listing*) Date: Thu, 27 Mar 2014 16:23:22 GMT (204kb,D) Title: Hidden Q-structure and Lie 3-algebra for non-abelian superconformal models in six dimensions Authors: Sylvain Lavau, Henning Samtleben, Thomas Strobl Categories: math-ph hep-th math.MP Comments: 51 pages, 3 figures \\ We disclose the mathematical structure underlying the gauge field sector of the recently constructed non-abelian superconformal models in six spacetime dimensions. This is a coupled system of 1-form, 2-form, and 3-form gauge fields. We show that the algebraic consistency constraints governing this system permit to define a Lie 3-algebra, generalizing the structural Lie algebra of a standard Yang-Mills theory to the setting of a higher bundle. Reformulating the Lie 3-algebra in terms of a nilpotent degree 1 BRST-type operator Q, this higher bundle can be compactly described by means of a Q-bundle; its fiber is the shifted tangent of the Q-manifold corresponding to the Lie 3-algebra and its base the odd tangent bundle of spacetime equipped with the de Rham differential. The generalized Bianchi identities can then be retrieved concisely from Q^2=0, which encode all the essence of the structural identities. Gauge transformations are identified as vertical inner automorphisms of such a bundle, their algebra being determined from a Q-derived bracket. \\ ( http://arxiv.org/abs/1403.7114 , 204kb) ------------------------------------------------------------------------------ \\ arXiv:1403.7173 (*cross-listing*) Date: Thu, 27 Mar 2014 19:01:02 GMT (165kb) Title: Constraints on the cosmological parameters from BICEP2, Planck and WMAP Authors: Cheng Cheng and Qing-Guo Huang Categories: astro-ph.CO gr-qc hep-ph hep-th Comments: 4 pages, 3 figures and 1 table \\ In this paper we constrain the cosmological parameters in the base $\Lambda$CDM+nrun+r+$n_t$ model by adopting Background Imaging of Cosmic Extragalactic Polarization (B2), Planck released in 2013 (P13) and Wilkinson Microwaves Anisotropy Probe 9-year Polarization (WP) data, where nrun denotes the running of spectruml index and $n_t$ is the tilt of primordial gravitational waves spectrum. We find that the constraints on $r$ and $n_t$ are $r=0.23_{-0.09}^{+0.05}$ and $n_t=0.03_{-0.11}^{+0.13}$ which are compatible with our previous results in arXiv:1403.5463 where only B2 data was used. \\ ( http://arxiv.org/abs/1403.7173 , 165kb) ------------------------------------------------------------------------------ \\ arXiv:1403.7193 (*cross-listing*) Date: Thu, 27 Mar 2014 19:58:03 GMT (1160kb,D) Title: Testing Split Supersymmetry with Inflation Authors: Nathaniel Craig and Daniel Green Categories: hep-ph astro-ph.CO hep-th Comments: 19 pages, 6 figures \\ Split supersymmetry (SUSY) -- in which SUSY is relevant to our universe but largely inaccessible at current accelerators -- has become increasingly plausible given the absence of new physics at the LHC, the success of gauge coupling unification, and the observed Higgs mass. Indirect probes of split SUSY such as electric dipole moments (EDMs) and flavor violation offer hope for further evidence but are ultimately limited in their reach. Inflation offers an alternate window into SUSY through the direct production of superpartners during inflation. These particles are capable of leaving imprints in future cosmological probes of primordial non-gaussianity. Given the recent observations of BICEP2, the scale of inflation is likely high enough to probe the full range of split SUSY scenarios and therefore offers a unique advantage over low energy probes. The key observable for future experiments is equilateral non-gaussianity, which will be probed by both cosmic microwave background (CMB) and large scale structure (LSS) surveys. In the event of a detection, we forecast our ability to find evidence for superpartners through the scaling behavior in the squeezed limit of the bispectrum. \\ ( http://arxiv.org/abs/1403.7193 , 1160kb) %%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%% ------------------------------------------------------------------------------ \\ arXiv:1202.1962 replaced with revised version Thu, 27 Mar 2014 12:31:57 GMT (508kb) Title: Generalized Uncertainty Principle, Modified Dispersion Relation and Barrier penetration by a Dirac particle Authors: Sumit Ghosh Categories: hep-th Comments: 10 pages, 7 figures, LaTex \\ ( http://arxiv.org/abs/1202.1962 , 508kb) ------------------------------------------------------------------------------ \\ arXiv:1305.1949 (*cross-listing*) replaced with revised version Wed, 26 Mar 2014 20:44:38 GMT (885kb,D) Title: Bulk Entanglement Spectrum Reveals Quantum Criticality within a Topological State Authors: Timothy H. Hsieh and Liang Fu Categories: cond-mat.str-el hep-th Comments: 5 pages, 2 figures, 3 pages of Supplementary Material \\ ( http://arxiv.org/abs/1305.1949 , 885kb) ------------------------------------------------------------------------------ \\ arXiv:1308.4980 replaced with revised version Wed, 26 Mar 2014 23:03:47 GMT (705kb,D) Title: Solving 2D QCD with an adjoint fermion analytically Authors: Emanuel Katz, Gustavo Marques Tavares, Yiming Xu Categories: hep-th Comments: 26 pages, 5 figures; v2: some typos corrected \\ ( http://arxiv.org/abs/1308.4980 , 705kb) ------------------------------------------------------------------------------ \\ arXiv:1309.4169 replaced with revised version Thu, 27 Mar 2014 06:46:36 GMT (20kb) Title: Canonical formalism and quantization of a massless spinning bosonic particle in four dimensions Authors: Shinichi Deguchi, Shouma Negishi, Satoshi Okano, Takafumi Suzuki Categories: hep-th math-ph math.MP quant-ph Comments: 23 pages, minor changes; published version Journal-ref: Int. J. Mod. Phys. A 29 (2014) 1450044 \\ ( http://arxiv.org/abs/1309.4169 , 20kb) ------------------------------------------------------------------------------ \\ arXiv:1309.7984 replaced with revised version Thu, 27 Mar 2014 13:11:32 GMT (23kb) Title: Link polynomial calculus and the AENV conjecture Authors: S.Arthamonov, A.Mironov, A.Morozov and An.Morozov Categories: hep-th math.GT math.QA Comments: 20 pages Report-no: FIAN/TD-13/13, ITEP/TH-37/13 \\ ( http://arxiv.org/abs/1309.7984 , 23kb) ------------------------------------------------------------------------------ \\ arXiv:1311.3124 (*cross-listing*) replaced with revised version Thu, 27 Mar 2014 15:22:18 GMT (13kb) Title: Conformally invariant wave equation for a symmetric second rank tensor ("spin-2") in d-dimensional curved background Authors: J. Ben Achour, E. Huguet, J. Renaud Categories: gr-qc hep-th math-ph math.MP Comments: 7 pages, Revtex 4, some minor typo corrected Journal-ref: Phys. Rev. D 89.064041 (2014) DOI: 10.1103/PhysRevD.89.064041 \\ ( http://arxiv.org/abs/1311.3124 , 13kb) ------------------------------------------------------------------------------ \\ arXiv:1312.1677 replaced with revised version Thu, 27 Mar 2014 02:14:30 GMT (209kb) Title: From the Berkovits formulation to the Witten formulation in open superstring field theory Authors: Yuki Iimori, Toshifumi Noumi, Yuji Okawa and Shingo Torii Categories: hep-th math.AT math.QA Comments: 50 pages, 2 figures; v2: references added, minor changes, version published in JHEP Report-no: RIKEN-MP-77; UT-Komaba/13-17 Journal-ref: JHEP 1403:044,2014 DOI: 10.1007/JHEP03(2014)044 \\ ( http://arxiv.org/abs/1312.1677 , 209kb) ------------------------------------------------------------------------------ \\ arXiv:1312.4263 (*cross-listing*) replaced with revised version Thu, 27 Mar 2014 05:12:25 GMT (32kb,D) Title: Composite-kink solutions of coupled nonlinear wave equations Authors: Hosho Katsura Categories: nlin.PS cond-mat.str-el hep-th Comments: 5 pages, 2 figures, typos corrected. This version will appear in Phys. Rev. D \\ ( http://arxiv.org/abs/1312.4263 , 32kb) ------------------------------------------------------------------------------ \\ arXiv:1401.0713 (*cross-listing*) replaced with revised version Thu, 27 Mar 2014 12:34:53 GMT (4727kb,D) Title: Gluonic three-point correlations in pure Landau gauge QCD Authors: Adrian L. Blum, Markus Q. Huber, Mario Mitter, Lorenz von Smekal Categories: hep-ph hep-lat hep-th Comments: 7 pages, 11 figs.; agrees with published version Journal-ref: Phys. Rev. D 89, 061703(R) (2014) DOI: 10.1103/PhysRevD.89.061703 \\ ( http://arxiv.org/abs/1401.0713 , 4727kb) ------------------------------------------------------------------------------ \\ arXiv:1401.1357 (*cross-listing*) replaced with revised version Thu, 27 Mar 2014 10:58:07 GMT (18kb) Title: The O(n) $\phi^4$ model with free surfaces in the large-$n$ limit: Some exact results for boundary critical behaviour, fluctuation-induced forces and distant-wall corrections Authors: H.W. Diehl and S.B. Rutkevich Categories: cond-mat.stat-mech hep-th Comments: published version, some misprints corrected Journal-ref: Journal of Physics A: Mathematical and Theoretical 47, 145004 (2014) DOI: 10.1088/1751-8113/47/14/145004 \\ ( http://arxiv.org/abs/1401.1357 , 18kb) ------------------------------------------------------------------------------ \\ arXiv:1401.1901 replaced with revised version Thu, 27 Mar 2014 06:40:24 GMT (13kb) Title: Spinor and twistor formulations of massless particles with rigidity Authors: Shinichi Deguchi, Takafumi Suzuki Categories: hep-th math-ph math.MP Comments: 15 pages; minor corrections; published version Journal-ref: Phys. Lett. B 731 (2014) 337 \\ ( http://arxiv.org/abs/1401.1901 , 13kb) ------------------------------------------------------------------------------ \\ arXiv:1402.0683 replaced with revised version Thu, 27 Mar 2014 10:02:17 GMT (11465kb,D) Title: Spontaneous symmetry breaking in dual-core baby-Skyrmion systems Authors: Boris A. Malomed, Yakov Shnir and Gleb Zhilin Categories: hep-th Comments: 17 pages, 18 figures, clarifications and a reference added; final version appearing in PRD \\ ( http://arxiv.org/abs/1402.0683 , 11465kb) ------------------------------------------------------------------------------ \\ arXiv:1402.0871 replaced with revised version Thu, 27 Mar 2014 18:57:58 GMT (1205kb,D) Title: Quantum Spectral Curve at Work: From Small Spin to Strong Coupling in N=4 SYM Authors: Nikolay Gromov, Fedor Levkovich-Maslyuk, Grigory Sizov, Saulius Valatka Categories: hep-th math-ph math.MP Comments: 53 pages, references added \\ ( http://arxiv.org/abs/1402.0871 , 1205kb) ------------------------------------------------------------------------------ \\ arXiv:1402.1055 (*cross-listing*) replaced with revised version Thu, 27 Mar 2014 13:25:28 GMT (1038kb) Title: Charged Q-balls and boson stars and dynamics of charged test particles Authors: Yves Brihaye (Universit\'e de Mons, Belgium), Valeria Diemer (Uni Oldenburg, Germany) and Betti Hartmann (JUB, Germany & UFES, Brazil) Categories: gr-qc hep-ph hep-th Comments: 23 pages including 15 figures; v2: references added, comments on limits on model parameters added, discussion on stability with respect to pair production added; matched version accepted for publication in Phys. Rev. D \\ ( http://arxiv.org/abs/1402.1055 , 1038kb) ------------------------------------------------------------------------------ \\ arXiv:1402.4999 (*cross-listing*) replaced with revised version Thu, 27 Mar 2014 15:07:44 GMT (0kb,I) Title: A Local Torelli's Theorem for SUSY curves Authors: Giulio Codogni Categories: math.AG hep-th Comments: This paper has been withdrawn by the author because Witten pointed out a major mistake in the main result \\ ( http://arxiv.org/abs/1402.4999 , 0kb) ------------------------------------------------------------------------------ \\ arXiv:1403.0255 replaced with revised version Thu, 27 Mar 2014 19:25:46 GMT (25kb,D) Title: Charged relativistic particles in non-commutative space Authors: Herbert Balasin, Daniel N. Blaschke, Francois Gieres and Manfred Schweda Categories: hep-th Comments: 25 pages; v2 references added Report-no: LA-UR-14-20833 \\ ( http://arxiv.org/abs/1403.0255 , 25kb) ------------------------------------------------------------------------------ \\ arXiv:1403.4216 (*cross-listing*) replaced with revised version Thu, 27 Mar 2014 16:04:31 GMT (330kb,D) Title: Tensor Detection Severely Constrains Axion Dark Matter Authors: David J. E. Marsh, Daniel Grin, Renee Hlozek, Pedro G. Ferreira Categories: astro-ph.CO hep-ph hep-th Comments: 6 pages, 1 figure. v2: Some discussion and references added \\ ( http://arxiv.org/abs/1403.4216 , 330kb) ------------------------------------------------------------------------------ \\ arXiv:1403.4772 (*cross-listing*) replaced with revised version Thu, 27 Mar 2014 01:14:39 GMT (886kb) Title: Lattice energy-momentum tensor from the Yang-Mills gradient flow -- inclusion of fermion fields Authors: Hiroki Makino, Hiroshi Suzuki Categories: hep-lat hep-th Comments: 29 pages Report-no: KYUSHU-HET-140 \\ ( http://arxiv.org/abs/1403.4772 , 886kb) ------------------------------------------------------------------------------ \\ arXiv:1403.4898 replaced with revised version Thu, 27 Mar 2014 18:08:48 GMT (18kb) Title: Boundary dynamics of asymptotically flat 3D gravity coupled to higher spin fields Authors: Hernan A. Gonzalez, Miguel Pino Categories: hep-th gr-qc Comments: 16 pages, no figures \\ ( http://arxiv.org/abs/1403.4898 , 18kb) ------------------------------------------------------------------------------ \\ arXiv:1403.5517 replaced with revised version Thu, 27 Mar 2014 14:34:00 GMT (39kb) Title: On deformations of AdS_n x S^n supercosets Authors: B. Hoare, R. Roiban and A. A. Tseytlin Categories: hep-th Comments: 31 pages; v2: 33 pages, comments on unitarity and finiteness added and misprints corrected Report-no: Imperial-TP-AT-2014-02, HU-EP-14/10 \\ ( http://arxiv.org/abs/1403.5517 , 39kb) ------------------------------------------------------------------------------ \\ arXiv:1403.5531 replaced with revised version Wed, 26 Mar 2014 22:20:59 GMT (16kb) Title: The Imaginary Starobinsky Model Authors: Sergio Ferrara, Alex Kehagias, Antonio Riotto Categories: hep-th astro-ph.CO gr-qc hep-ph Comments: 11 pages Report-no: CERN-PH-TH/2014-046 \\ ( http://arxiv.org/abs/1403.5531 , 16kb) %%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%--- For subscribe options to combined physics archives, e-mail To: physics@arXiv.org, Subject: subscribe ----------------------------------------------------------------------------- For help on viewing and making submissions, see http://arXiv.org/help/ For a list of archive mirror sites, see http://arXiv.org/servers.html ----------------------------------------------------------------------------- Third-party submissions cause excessive problems. 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