Date: Thu, 27 Sep 12 00:11:20 GMT Subject: hep-th daily 19 new + 6 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 Tue 25 Sep 12 20:00:00 GMT to Wed 26 Sep 12 20:00:00 GMT ------------------------------------------------------------------------------ \\ arXiv:1209.5742 Date: Tue, 25 Sep 2012 20:00:00 GMT (32kb,D) Title: DBI Realizations of the Pseudo-Conformal Universe and Galilean Genesis Scenarios Authors: Kurt Hinterbichler, Austin Joyce, Justin Khoury, Godfrey E. J. Miller Categories: hep-th Comments: 34 pages \\ The pseudo-conformal universe is an alternative to inflation in which the early universe is described by a conformal field theory on approximately flat space-time. The fields develop time-dependent expectation values, spontaneously breaking the conformal symmetries to a de Sitter subalgebra, and fields of conformal weight zero acquire a scale invariant spectrum of perturbations. In this paper, we show that the pseudo-conformal scenario can be naturally realized within theories that would ordinarily be of interest for DBI inflation, such as the world-volume theory of a probe brane in an AdS bulk space-time. In this approach, the weight zero spectator field can be associated with a geometric flat direction in the bulk, and its scale invariance is protected by a shift symmetry. \\ ( http://arxiv.org/abs/1209.5742 , 32kb) ------------------------------------------------------------------------------ \\ arXiv:1209.5755 Date: Tue, 25 Sep 2012 20:07:33 GMT (473kb,D) Title: Higher-Spin Interactions: three-point functions and beyond Authors: Massimo Taronna Categories: hep-th Comments: Ph.D. Thesis (Advisor: Prof. Augusto Sagnotti), 182 pages, 2 figures \\ This Thesis reviews some recent developments about higher-spin interactions in flat and constant curvature backgrounds. Particular attention is given to the ambient-space formulation of the problem, both at the cubic and at the quartic order, with some emphasis on the structure of the solution to the Noether procedure that can be expressed in terms of powers of the standard Yang Mills amplitudes. We also highlight how some aspects of String Theory appear to reflect key properties of Field Theory that go beyond its low energy limit. \\ ( http://arxiv.org/abs/1209.5755 , 473kb) ------------------------------------------------------------------------------ \\ arXiv:1209.5757 Date: Tue, 25 Sep 2012 20:22:20 GMT (347kb,D) Title: The Wave Function of Quantum de Sitter Authors: Alejandra Castro and Alexander Maloney Categories: hep-th gr-qc Comments: 20 pages, 3 figures Report-no: NSF-KITP-12-165 \\ We consider quantum general relativity in three dimensions with a positive cosmological constant. The Hartle-Hawking wave function is computed as a function of metric data at asymptotic future infinity. The analytic continuation from Euclidean Anti-de Sitter space provides a natural integration contour in the space of metrics, allowing us -- with certain assumptions -- to compute the wave function exactly, including both perturbative and non-perturbative effects. The resulting wave function is a non-normalizable function of the conformal structure of future infinity which is infinitely peaked at geometries where I^+ becomes infinitely inhomogeneous. We interpret this as a non-perturbative instability of de Sitter space in three dimensional Einstein gravity. \\ ( http://arxiv.org/abs/1209.5757 , 347kb) ------------------------------------------------------------------------------ \\ arXiv:1209.5772 Date: Tue, 25 Sep 2012 21:18:29 GMT (11kb) Title: Gravity with spin excludes fermionic strings Authors: Nikodem Poplawski Categories: hep-th gr-qc \\ The existence of intrinsic spin of matter requires the metric-affine formulation of gravity, in which the affine connection is not constrained to be symmetric and its antisymmetric part (torsion tensor) is a dynamical variable. We show that the cyclic identity for the curvature tensor in the metric-affine formulation forbids fermions represented by Dirac spinors to form point or string configurations. Consequently, fermionic strings contradict the gravitational field equations in the presence of spin. Superstring theory is therefore incorrect. \\ ( http://arxiv.org/abs/1209.5772 , 11kb) ------------------------------------------------------------------------------ \\ arXiv:1209.5817 Date: Wed, 26 Sep 2012 02:22:26 GMT (248kb) Title: Partially Supersymmetric ABJM Theory with Flux Authors: Yoonbai Kim, O-Kab Kwon, D. D. Tolla Categories: hep-th Comments: 22 pages, 1 figure \\ Starting with generic Wess-Zumino type coupling to constant four-form and the dual seven-form field strengths in the ABJM theory, we obtain mass-deformed theories with ${\cal N}=2,4$ supersymmetries. These theories contain massless scalar fields and allow the implementation of the Mukhi-Papageorgakis Higgsing procedure. Using this procedure, we connect the Higgsed theories to three-dimensional mass-deformed SYM theories. These are also connected by the four-dimensional ${\cal N}=1^*,2^*$ mass-deformed SYM theories through dimensional reduction. We classify the three-dimensional mass-deformed SYM theories of ${\cal N}=1,2,4$ supersymmetry, of which a few cases of ${\cal N}=1,2$ are connected neither by MP Higgsing procedure nor dimensional reduction. \\ ( http://arxiv.org/abs/1209.5817 , 248kb) ------------------------------------------------------------------------------ \\ arXiv:1209.5854 Date: Wed, 26 Sep 2012 07:43:31 GMT (13kb) Title: Casimir Energy for a Spherical Boundary within Surface Impedance Approach: Obtaining Negative Values Authors: Luigi Rosa Categories: hep-th quant-ph \\ We compute the Casimir Energy of a spherical region using a Surface Impedance approach. We characterize the Surface Impedance of the boundary using plasma model. Exact analytical formulae are obtained by means of the zeta function regularization method and all the divergencies are explicitly computed. We find that it is possible to have negative Casimir energy for some range of values of the relevant parameter. Limits of applicability of the model are discussed. \\ ( http://arxiv.org/abs/1209.5854 , 13kb) ------------------------------------------------------------------------------ \\ arXiv:1209.5879 Date: Wed, 26 Sep 2012 09:12:31 GMT (60kb,D) Title: Analytic results for multiloop scattering amplitudes Authors: Johannes M. Henn Categories: hep-th hep-ph Comments: 7 pages, 5 figures; talk given at 'Loops and Legs in Quantum Field Theory', 2012 \\ The velocity-dependent cusp anomalous dimension is by definition the ultraviolet (UV) anomalous dimension of a Wilson loop with a cusp. It appears in many physically interesting processes. In this talk we present recent progress in the analytic calculation of that quantity. \\ ( http://arxiv.org/abs/1209.5879 , 60kb) ------------------------------------------------------------------------------ \\ arXiv:1209.5883 Date: Wed, 26 Sep 2012 09:43:39 GMT (111kb) Title: Brane inflation: A field theory approach in background supergravity Authors: Sayantan Choudhury, Supratik Pal Categories: hep-th astro-ph.CO gr-qc hep-ph Comments: 4 pages, 2 figures; to appear in the Proceedings of COSGRAV-2012 (International Conference on Modern Perspectives of Cosmology and Gravitation), Indian Statistical Institute, Kolkata, India, February 7-11, 2012 \\ We propose a model of inflation in the framework of brane cosmology driven by background supergravity. Starting from bulk supergravity we construct the inflaton potential on the brane and employ it to investigate for the consequences to inflationary paradigm. To this end, we derive the expressions for the important parameters in brane inflation, which are somewhat different from their counterparts in standard cosmology, using the one loop radiative corrected potential. We further estimate the observable parameters and find them to fit well with recent observational data. We have studied extensively reheating phenomenology, which explains the thermal history of the universe and leptogenesis through the production of thermal gravitino pertaining to the particle physics phenomenology of the early universe. \\ ( http://arxiv.org/abs/1209.5883 , 111kb) ------------------------------------------------------------------------------ \\ arXiv:1209.5900 Date: Wed, 26 Sep 2012 11:12:13 GMT (2945kb) Title: alpha'-Corrected Chiral Magnetic Effect Authors: M. Ali-Akbari, S. F. Taghavi Categories: hep-th Comments: 20 pages, 7 figures \\ Using AdS/CFT correspondence, the effect of alpha'-correction on the value of Chiral Magnetic Effect(CME) is computed by adding a number of spinning probe D7-branes in the $\alpha'$-corrected background. We show that although for the massive solutions the magnitude of CME increases in the presence of alpha'-correction, it does not change for the massless solution. However some of the D7-brane embeddings have no CME, after applying alpha'-correction, they find a non-zero value for the CME. As a result the number of solutions with a non-zero CME increases. We also show that the effect of alpha'-correction removes the singularity from some of the D7-brane embeddings. \\ ( http://arxiv.org/abs/1209.5900 , 2945kb) ------------------------------------------------------------------------------ \\ arXiv:1209.5902 Date: Wed, 26 Sep 2012 11:15:29 GMT (326kb,D) Title: A String Theory Explanation for Quantum Chaos in the Hadronic Spectrum Authors: Leopoldo A. Pando Zayas and Dori Reichmann Categories: hep-th hep-ph nucl-th Comments: 11 pages, 9 figures \\ In the 1950's Wigner and collaborators provided an explanation for the spectrum of hadronic excitations in terms of Random Matrix Theory. In the 1980's it was understood that some hadronic spectral properties were generic to systems whose classical limit is chaotic. We use string theory to demonstrate explicitly how, under very general conditions, recent holographic models of strong interactions have a spectrum compatible with Wigner's conjecture. \\ ( http://arxiv.org/abs/1209.5902 , 326kb) ------------------------------------------------------------------------------ \\ arXiv:1209.5915 Date: Wed, 26 Sep 2012 12:49:03 GMT (1082kb,D) Title: Towards a holographic realization of the Quarkyonic phase Authors: Jan de Boer, Borun D. Chowdhury, Michal P. Heller, Jakub Jankowski Categories: hep-th hep-ph nucl-th Comments: 31 pages, 16 figures \\ Large-N_c QCD matter at intermediate baryon density and low temperatures has been conjectured to be in the so-called Quarkyonic phase, i.e., to have a quark Fermi surface and on top of it a confined spectrum of excitations. It has been suggested that the presence of the quark Fermi surface leads to a homogeneous phase with restored chiral symmetry, which is unstable towards creating condensates breaking both the chiral and translational symmetry. Motivated by these exotic features, we investigate properties of cold baryonic matter in the single flavor Sakai-Sugimoto model searching for a holographic realization of the Quarkyonic phase. We use a simplified mean-field description and focus on the regime of parametrically large baryon densities, of the order of the square of the 't Hooft coupling, as they turn out to lead to new physical effects similar to the ones occurring in the Quarkyonic phase. One effect, the appearance of a particular marginally stable mode breaking translational invariance and linked with the presence of the Chern-Simons term in the flavor brane Lagrangian, is known to occur in the deconfined phase of the Sakai-Sugimoto model, but turns out to be absent here. The other, completely new phenomenon that we, preliminarily, study using strong simplifying assumptions are density-enhanced interactions of the flavor brane gauge field with holographically represented baryons. These seem to significantly affect the spectrum of vector and axial mesons and might lead to approximate chiral symmetry restoration in the lowest part of the spectrum, where the mesons start to qualitatively behave like collective excitations of the dense baryonic medium. We discuss the relevance of these effects for holographic searches of the Quarkyonic phase and conclude with a discussion of various subtleties involved in constructing a mean-field holographic description of a dense baryonic medium. \\ ( http://arxiv.org/abs/1209.5915 , 1082kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6009 Date: Wed, 26 Sep 2012 17:12:10 GMT (11kb) Title: Penner Type Ensemble for Gauge Theories Revisited Authors: Daniel Krefl Categories: hep-th Comments: 6 pages Report-no: UCB-PTH-12/15 \\ The Penner type beta-ensemble for Omega-deformed N=2 SU(2) gauge theory with two massless flavors arising as a limiting case from the AGT conjecture is considered. The partition function can be calculated perturbatively in a saddle-point approximation. A large N limit reproduces the gauge theory partition function expanded in a strong coupling regime, for any beta and beyond tree-level, confirming previous results obtained via special geometry and the holomorphic anomaly equation. The leading terms and gap of the gauge theory free energy at the monopole/dyon point follow as a corollary. \\ ( http://arxiv.org/abs/1209.6009 , 11kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6016 Date: Wed, 26 Sep 2012 17:43:07 GMT (467kb) Title: Brane bounce-type configurations in a string-like scenario Authors: L. J. S. Sousa, C. A. S. Silva, C. A. S. Almeida Categories: hep-th gr-qc Comments: 15 pages, 5 figures. To appear in Physics Letters B. arXiv admin note: text overlap with arXiv:hep-ph/0402168 by other authors \\ Brane world six dimensional scenarios with string like metric has been proposed to alleviate the problem of field localization. However, these models have been suffering from some drawbacks related with energy conditions as well as from difficulties to find analytical solutions. In this work, we propose a model where a brane is made of a scalar field with bounce-type configurations and embedded in a bulk with a string-like metric. This model produces a sound AdS scenario where none of the important physical quantities is infinite. Among these quantities are the components of the energy momentum tensor, which have its positivity ensured by a suitable choice of the bounce configurations. Another advantage of this model is that the warp factor can be obtained analytically from the equations of motion for the scalar field, obtaining as a result a thick brane configuration, in a six dimensional context. Moreover, the study of the scalar field localization in these scenario is done. \\ ( http://arxiv.org/abs/1209.6016 , 467kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6031 Date: Wed, 26 Sep 2012 18:56:04 GMT (250kb,D) Title: Semi-classical Dynamical Triangulations Authors: Jan Ambjorn and Timothy G. Budd Categories: hep-th gr-qc hep-lat Comments: 11 pages, 5 figures \\ For non-critical string theory the partition function reduces to an integral over moduli space after integrating over matter fields. The moduli integrand is known analytically for genus one surfaces. The formalism of dynamical triangulations provides us with a regularization of non-critical string theory and we show that even for very small triangulations it reproduces very well the continuum integrand when the central charge $c$ of the matter fields is large negative, thus providing a striking example of how the quantum fluctuations of geometry disappear when $c \to -\infty$. \\ ( http://arxiv.org/abs/1209.6031 , 250kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6034 Date: Wed, 26 Sep 2012 19:10:30 GMT (1039kb) Title: Diagonal multi-soliton matrix elements in finite volume Authors: T. P\'almai and G. Tak\'acs Categories: hep-th cond-mat.stat-mech Comments: 11 pages, 9 eps figures, revtex4. arXiv admin note: substantial text overlap with arXiv:1112.6322 \\ We consider diagonal matrix elements of local operators between multi-soliton states in finite volume in the sine-Gordon model, and formulate a conjecture regarding their finite size dependence which is valid up to corrections exponential in the volume. This conjecture extends the results of Pozsgay and Tak\'acs which were only valid for diagonal scattering. In order to test the conjecture we implement a numerical renormalization group improved truncated conformal space approach. The numerical comparisons confirm the conjecture, which is expected to be valid for general integrable field theories. The conjectured formula can be used to evaluate finite temperature one-point and two-point functions using recently developed methods. \\ ( http://arxiv.org/abs/1209.6034 , 1039kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6039 Date: Wed, 26 Sep 2012 19:29:59 GMT (253kb,D) Title: Perturbative S-matrix for massive scalar fields in global de Sitter space Authors: Donald Marolf, Ian A. Morrison, Mark Srednicki Categories: hep-th gr-qc Comments: 52 pp., 7 figures \\ We construct a perturbative S-matrix for interacting massive scalar fields in global de Sitter space. Our S-matrix is formulated in terms of asymptotic particle states in the far past and future, taking appropriate care for light fields whose wavefunctions decay only very slowly near the de Sitter conformal boundaries. An alternative formulation expresses this S-matrix in terms of residues of poles in analytically-continued Euclidean correlators (computed in perturbation theory), making it clear that the standard Minkowski-space result is obtained in the flat-space limit. Our S-matrix transforms properly under CPT, is invariant under the de Sitter isometries and perturbative field redefinitions, and is unitary. This unitarity implies a de Sitter version of the optical theorem. We explicitly verify these properties to second order in the coupling for a general cubic interaction, including both tree- and loop-level contributions. Contrary to other statements in the literature, we find that a particle of any positive mass may decay at tree level to any number of particles, each of arbitrary positive masses. In particular, even very light fields (in the complementary series of de Sitter representations) are not protected from tree-level decays. \\ ( http://arxiv.org/abs/1209.6039 , 253kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6041 Date: Wed, 26 Sep 2012 19:33:37 GMT (430kb,D) Title: A Zip-code for Quarks, Leptons and Higgs Bosons Authors: Damian Kaloni Mayorga Pena, Hans Peter Nilles, Paul-Konstantin Oehlmann Categories: hep-th hep-ph Comments: 42 pages, 8 figures \\ The location of matter fields and the pattern of gauge symmetry in extra dimensions are crucial ingredients for string model building. We analyze realistic MSSM models from the heterotic Z6 Mini-Landscape and extract those properties that are vital for their success. We find that Higgs bosons and the top quark are not localized in extra dimensions and live in the full D=10 dimensional space-time. The first two families of quarks and leptons, however, live at specific fixed points in extra dimensional space and exhibit a (discrete) family symmetry. Within a newly constructed Z2XZ4 orbifold framework we further elaborate on these location properties and the appearance of discrete symmetries. A similar geometrical picture emerges. This particular Zip-code for quarks, leptons and Higgs bosons seems to be of more general validity and thus a useful guideline for realistic model building in string theory. \\ ( http://arxiv.org/abs/1209.6041 , 430kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6042 Date: Wed, 26 Sep 2012 19:34:05 GMT (45kb,D) Title: The r-matrix of the Alday-Arutyunov-Frolov model Authors: A. Melikyan and G. Weber Categories: hep-th Comments: 39 pages \\ We investigate the classical integrability of the Alday-Arutyunov-Frolov model, and show that the Lax connection can be reduced to a simpler 2 x 2 representation. Based on this result, we calculate the algebra between the L-operators and find that it has a highly non-ultralocal form. We then employ and make a suitable generalization of the regularization technique proposed by Maillet for a simpler class of non-ultralocal models, and find the corresponding r- and s-matrices. We also make a connection between the operator-regularization method proposed earlier for the quantum case, and the Maillet's symmetric limit regularization prescription used for non-ultralocal algebras in the classical theory. \\ ( http://arxiv.org/abs/1209.6042 , 45kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6049 Date: Wed, 26 Sep 2012 19:55:10 GMT (20kb) Title: Modular Invariant Regularization of String Determinants and the Serre GAGA principle Authors: Marco Matone Categories: hep-th math.AG Comments: 18 pp \\ We show that the ratios of determinants of Laplacians which appear in string theories admit a modular invariant regularization. The key point is the modular invariance of the Bergmann reproducing kernel. This is achieved by normalizing the b-c and beta-gamma systems of weight n by the determinant of the n-fold Hadamard product of the Bergmann kernel. As a consequence, such ratios of determinants, which correspond to the path integral on the world-sheet metric, together with space-time coordinates, b-c and/or beta-gamma systems, become volume forms on the moduli space of genus g curves M_g. The construction leads to introduce a non-chiral analog of the Mumford forms without integrating over the fibers of the determinant line bundles \lambda_n, avoiding in this way a Weyl anomaly. It turns out that the building blocks are the recently introduced vector-valued Teichmueller modular forms. These naturally appear in the determinant of the Hadamard product of the Bergman kernel, that, roughly speaking, maps sections of the modulo square of the Hodge bundle |\lambda_1|^2 to sections of |\lambda_n|^2 and absorbs the point dependence of the path integral zero modes insertion, without introducing any anomaly. \\ ( http://arxiv.org/abs/1209.6049 , 20kb) %-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%- ------------------------------------------------------------------------------ \\ arXiv:1209.5792 (*cross-listing*) Date: Tue, 25 Sep 2012 23:34:58 GMT (7kb) Title: A list of identities made with products between two different generators of the Clifford algebra Authors: J. B. Formiga Categories: math-ph gr-qc hep-th math.MP Comments: 7 pages \\ Here I present a full list with all possibles products between the generators of the Clifford algebra in a four-dimensional spacetime. The resulting expressions turned out to be very simple and easy to deal with. \\ ( http://arxiv.org/abs/1209.5792 , 7kb) ------------------------------------------------------------------------------ \\ arXiv:1209.5862 (*cross-listing*) Date: Wed, 26 Sep 2012 08:20:12 GMT (10kb) Title: Wormholes supported by hybrid metric-Palatini gravity Authors: Salvatore Capozziello, Tiberiu Harko, Tomi S. Koivisto, Francisco S. N. Lobo, Gonzalo J. Olmo Categories: gr-qc astro-ph.HE hep-th Comments: 4 pages \\ Recently, a modified theory of gravity was presented, which consists of the superposition of the metric Einstein-Hilbert Lagrangian with an $f(\cal R)$ term constructed \`{a} la Palatini. The theory possesses extremely interesting features such as predicting the existence of a long-range scalar field, that explains the late-time cosmic acceleration and passes the local tests, even in the presence of a light scalar field. In this brief report, we consider the possibility that wormholes are supported by this hybrid metric-Palatini gravitational theory. We present here the general conditions for wormhole solutions according to the null energy conditions at the throat and find specific examples. In the first solution, we specify the redshift function, the scalar field and choose the potential that simplifies the modified Klein-Gordon equation. This solution is not asymptotically flat and needs to be matched to a vacuum solution. In the second example, by adequately specifying the metric functions and choosing the scalar field, we find an asymptotically flat spacetime. \\ ( http://arxiv.org/abs/1209.5862 , 10kb) ------------------------------------------------------------------------------ \\ arXiv:1209.5876 (*cross-listing*) Date: Wed, 26 Sep 2012 09:05:22 GMT (17kb) Title: Emergent gravity: From statistical point of view Authors: Bibhas Ranjan Majhi Categories: gr-qc hep-th Comments: 4 pages, no figures, Talk presented at international conference: COSGRAV12 (Indian Statistical Institute, Kolkata, India), Mainly based on arXiv:1003.2312, to appear in Journal of Physics Conference Series \\ Near the event horizon of a black hole, the effective theory is two dimensional conformal theory. Here we show that the holographic modes characterising this underlying conformal symmetry and the basic definition of entropy $S$ in statistical mechanics lead the equipartition law of energy. We also show that $S$ is proportional to the gravity action which suggests the emergent nature of gravity. This is further bolstered by expressing the generalised Smarr formula as a thermodynamic relation, $S = E/ 2T$, where $T$ is the Hawking temperature and $E$ is shown to be the Komar energy. \\ ( http://arxiv.org/abs/1209.5876 , 17kb) ------------------------------------------------------------------------------ \\ arXiv:1209.5884 (*cross-listing*) Date: Wed, 26 Sep 2012 09:43:48 GMT (5kb) Title: N-Galilean conformal algebras and higher derivatives Lagrangians Authors: K. Andrzejewski, J. Gonera Categories: math-ph hep-th math.MP \\ It is shown that the N-Galilean conformal algebra, with N-odd, is the maximal symmetry algebra of the free Lagrangian involving (N+1)/2-th order time derivative. \\ ( http://arxiv.org/abs/1209.5884 , 5kb) ------------------------------------------------------------------------------ \\ arXiv:1209.5957 (*cross-listing*) Date: Wed, 26 Sep 2012 14:42:57 GMT (20kb) Title: Reconstruction Procedure in Nonlocal Models Authors: E. Elizalde, E. O. Pozdeeva, S. Yu. Vernov Categories: astro-ph.CO gr-qc hep-th Comments: 17 pages \\ A nonlocal gravity model is considered which does not assume the existence of a new dimensional parameter in the action and includes a function $f(\Box^{-1} R)$, with $\Box$ the d'Alembertian operator. Using a reconstruction procedure for the local scalar-tensor formulation of this model, a function f is obtained for which the model exhibits power-law solutions with the Hubble parameter $H=n/t$, for any value of the constant n. For generic n - namely except for a few special values which are characterized and also specifically studied - the corresponding function f is a sum of exponential functions. Corresponding power-law solutions are found explicitly. Also the case is solved in all detail of a function f such that the model contains both de Sitter and power-law solutions. \\ ( http://arxiv.org/abs/1209.5957 , 20kb) ------------------------------------------------------------------------------ \\ arXiv:1209.5974 (*cross-listing*) Date: Wed, 26 Sep 2012 15:36:12 GMT (6kb) Title: Kaluza-Klein mass spectra on extended dimensional branes Authors: Soon-Tae Hong Categories: hep-ph hep-th Comments: 5 pages \\ Exploiting the the Kaluza-Klein decompositions, we study the hierarchy between the Planck and electroweak scales on extended brane models with dimensionalities greater than that of the standard Randall-Sundrum model. Specifically, the extended dimensional four-brane and five-brane are constructed by attaching a circle and a sphere to the three-brane, respectively. Constructing the Kaluza-Klein modes on the extended five-brane, we obtain its effective masses which are shown to suppress exponentially with respective to the Planck mass, similar to the standard three-brane case. However, the effective mass spectrum on the four-brane implies intriguing characteristics associated with the quantization of the compact circular manifold. \\ ( http://arxiv.org/abs/1209.5974 , 6kb) %%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%% ------------------------------------------------------------------------------ \\ arXiv:1106.3877 (*cross-listing*) replaced with revised version Wed, 26 Sep 2012 07:13:08 GMT (1165kb) Title: A unified picture of phase transition: from liquid-vapour systems to AdS black holes Authors: Rabin Banerjee, Sujoy Kumar Modak, Dibakar Roychowdhury Categories: gr-qc hep-th Comments: v3; JHEP style, 11 pages, 1 figure; title is changed, paper rewritten but basic results are unchanged, to appear in JHEP \\ ( http://arxiv.org/abs/1106.3877 , 1165kb) ------------------------------------------------------------------------------ \\ arXiv:1108.5131 replaced with revised version Wed, 26 Sep 2012 14:48:00 GMT (21kb) Title: A Theory of Non-Abelian Tensor Gauge Field with Non-Abelian Gauge Symmetry G x G Authors: Chong-Sun Chu Categories: hep-th math-ph math.MP Comments: 18 pages. LaTeX. V2: references and a comment added v3: published version Report-no: DCPT-11/43 \\ ( http://arxiv.org/abs/1108.5131 , 21kb) ------------------------------------------------------------------------------ \\ arXiv:1110.2297 (*cross-listing*) replaced with revised version Wed, 26 Sep 2012 08:51:58 GMT (250kb) Title: Beyond one-gluon exchange in the infrared limit of Yang-Mills theory Authors: Marco Frasca Categories: hep-ph hep-lat hep-th Comments: 18 pages, 4 figures. Completely revised to show the emerging of area law. Added comparison with d=2+1 case and one more reference \\ ( http://arxiv.org/abs/1110.2297 , 250kb) ------------------------------------------------------------------------------ \\ arXiv:1203.4663 (*cross-listing*) replaced with revised version Wed, 26 Sep 2012 06:14:59 GMT (3385kb,D) Title: Observable Spectra of Induced Gravitational Waves from Inflation Authors: Laila Alabidi, Kazunori Kohri, Misao Sasaki and Yuuiti Sendouda Categories: astro-ph.CO gr-qc hep-ph hep-th Comments: 32 pages, 12 figures and 4 appendices Report-no: KEK-TH-1531; KEK-Cosmo-91 Journal-ref: JCAP 09:017, 2012 DOI: 10.1088/1475-7516/2012/09/017 \\ ( http://arxiv.org/abs/1203.4663 , 3385kb) ------------------------------------------------------------------------------ \\ arXiv:1203.6520 (*cross-listing*) replaced with revised version Wed, 26 Sep 2012 03:32:42 GMT (529kb) Title: Exact solution and exotic fluid in cosmology Authors: Seyen Kouwn, Taeyoon Moon, and Phillial Oh Categories: gr-qc astro-ph.CO hep-th Comments: 13 pages, 1 table, 1 figure, published version Journal-ref: Entropy 14 (2012) 1771 \\ ( http://arxiv.org/abs/1203.6520 , 529kb) ------------------------------------------------------------------------------ \\ arXiv:1204.3178 (*cross-listing*) replaced with revised version Wed, 26 Sep 2012 12:29:34 GMT (276kb) Title: Galactic Dark Matter in the Phantom Field Authors: Ming-Hsun Li, Kwei-Chou Yang Categories: astro-ph.CO gr-qc hep-ph hep-th Comments: 12 pages, 1 figure, quantum instability of the phantom field revised, one reference added Report-no: CYCU-HEP-12-04 \\ ( http://arxiv.org/abs/1204.3178 , 276kb) ------------------------------------------------------------------------------ \\ arXiv:1205.0290 replaced with revised version Wed, 26 Sep 2012 16:17:00 GMT (126kb,D) Title: Continuity, Deconfinement, and (Super) Yang-Mills Theory Authors: Erich Poppitz, Thomas Schaefer, Mithat Unsal Categories: hep-th hep-lat hep-ph Comments: A discussion of the non-cancellation of the nonzero mode determinants around supersymmetric monopole-instantons in N=1 SYM on R^3xS^1 is added, including an explicit calculation. The non-cancellation is, in fact, required by supersymmetry and holomorphy in order for the affine-Toda superpotential to be reproduced. References have also been added \\ ( http://arxiv.org/abs/1205.0290 , 126kb) ------------------------------------------------------------------------------ \\ arXiv:1205.3883 replaced with revised version Wed, 26 Sep 2012 00:18:19 GMT (163kb) Title: Non-conformal Hydrodynamics in Einstein-dilaton Theory Authors: Shailesh Kulkarni, Bum-Hoon Lee, Chanyong Park and Raju Roychowdhury Categories: hep-th Comments: 27 pages and 2 figures, published in JHEP Journal-ref: JHEP 1209 (2012) 004 DOI: 10.1007/JHEP09(2012)004 \\ ( http://arxiv.org/abs/1205.3883 , 163kb) ------------------------------------------------------------------------------ \\ arXiv:1205.5804 replaced with revised version Wed, 26 Sep 2012 16:20:34 GMT (30kb,D) Title: Holographic two-point functions for 4d log-gravity Authors: Niklas Johansson, Ali Naseh, Thomas Zojer Categories: hep-th gr-qc Comments: 35 pages; v2: typos corrected, added reference; v3: shorter introduction, minor changes in the text in section 3, added reference; published version Report-no: TUW-12-09; UG-12-12; IPM/P-2012/021 Journal-ref: JHEP 1209:114,2012 DOI: 10.1007/JHEP09(2012)114 \\ ( http://arxiv.org/abs/1205.5804 , 30kb) ------------------------------------------------------------------------------ \\ arXiv:1206.1809 replaced with revised version Wed, 26 Sep 2012 09:16:04 GMT (4906kb,D) Title: Shining Light on Modifications of Gravity Authors: Philippe Brax, Clare Burrage and Anne-Christine Davis Categories: hep-th astro-ph.CO hep-ph Comments: 20 pages, 10 figures. v2: Matches version accepted by JCAP; additional discussion of the strong coupling scale. Conclusions unchanged \\ ( http://arxiv.org/abs/1206.1809 , 4906kb) ------------------------------------------------------------------------------ \\ arXiv:1206.3089 replaced with revised version Wed, 26 Sep 2012 16:18:50 GMT (207kb,D) Title: Three-Dimensional Tricritical Gravity Authors: Eric A. Bergshoeff, Sjoerd de Haan, Wout Merbis, Jan Rosseel and Thomas Zojer Categories: hep-th Comments: 37 pages, 2 figures; v2: added reference; published version Report-no: UG-12-77 Journal-ref: Phys.Rev.D86:064037,2012 DOI: 10.1103/PhysRevD.86.064037 \\ ( http://arxiv.org/abs/1206.3089 , 207kb) ------------------------------------------------------------------------------ \\ arXiv:1206.4887 (*cross-listing*) replaced with revised version Wed, 26 Sep 2012 18:03:19 GMT (456kb,D) Title: Late time anisotropy as an imprint of cosmological backreaction Authors: Giovanni Marozzi, Jean-Philippe Uzan Categories: astro-ph.CO gr-qc hep-th Comments: 14 pages, 7 figures. Typos corrected. Article published in Phys. Rev. D 86, 063528 (2012) Journal-ref: Phys. Rev. D 86, 063528 (2012) DOI: 10.1103/PhysRevD.86.063528 \\ ( http://arxiv.org/abs/1206.4887 , 456kb) ------------------------------------------------------------------------------ \\ arXiv:1207.1549 replaced with revised version Wed, 26 Sep 2012 01:10:48 GMT (8kb) Title: Supersymmetry-Breaking Nonlinear Sigma Models Authors: Takumi Imai, K.-I. Izawa, Yuichiro Nakai Categories: hep-th hep-ph Comments: 9 pages, comments and references added Report-no: YITP-12-54; TU-914 \\ ( http://arxiv.org/abs/1207.1549 , 8kb) ------------------------------------------------------------------------------ \\ arXiv:1207.7335 replaced with revised version Wed, 26 Sep 2012 19:53:30 GMT (7kb) Title: Canonical Analysis of a System with Fermionic Gauge Symmetry Authors: D. G. C. McKeon Categories: hep-th \\ ( http://arxiv.org/abs/1207.7335 , 7kb) ------------------------------------------------------------------------------ \\ arXiv:1208.3175 replaced with revised version Wed, 26 Sep 2012 09:16:12 GMT (42kb,D) Title: Spontaneous Breaking of Lorentz Symmetry and Vertex Operators for Vortices Authors: A. P. Balachandran, Seckin Kurkcuoglu, Amilcar R. de Queiroz Categories: hep-th Comments: Revised version, 15 pages, 1 figure \\ ( http://arxiv.org/abs/1208.3175 , 42kb) ------------------------------------------------------------------------------ \\ arXiv:1209.1409 replaced with revised version Wed, 26 Sep 2012 07:10:53 GMT (804kb,D) Title: Super-A-polynomials for Twist Knots Authors: Satoshi Nawata, P. Ramadevi, Zodinmawia, and Xinyu Sun Categories: hep-th math.QA Comments: 22+16 pages, 16 tables and 5 figures; with a Maple program by Xinyu Sun and a Mathematica notebook in the ancillary files linked on the right; change in appendix B, v2 typo corrected and references added \\ ( http://arxiv.org/abs/1209.1409 , 804kb) ------------------------------------------------------------------------------ \\ arXiv:1209.4272 replaced with revised version Wed, 26 Sep 2012 18:45:57 GMT (349kb) Title: d-Wave holographic superconductors with backreaction in external magnetic fields Authors: Xian-Hui Ge, Shao Fei Tu, Bin Wang Categories: hep-th gr-qc Comments: 23 pages, 7 figures. typos corrected. to appear in JHEP. arXiv admin note: text overlap with arXiv:1105.4333 \\ ( http://arxiv.org/abs/1209.4272 , 349kb) ------------------------------------------------------------------------------ \\ arXiv:1209.4320 replaced with revised version Wed, 26 Sep 2012 16:18:49 GMT (41kb) Title: Maximal super Yang-Mills theories on curved background with off-shell supercharges Authors: Masashi Fujitsuka, Masazumi Honda and Yutaka Yoshida Categories: hep-th gr-qc math-ph math.MP Comments: 18 pages, no figrues, typos corrected, reference added Report-no: KEK-TH-1570 \\ ( http://arxiv.org/abs/1209.4320 , 41kb) %%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%--- 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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