Date: Fri, 28 Aug 09 00:00:41 GMT Subject: hep-th daily 12 new + 1 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 Aug 09 20:00:01 GMT to Thu 27 Aug 09 20:00:02 GMT ------------------------------------------------------------------------------ \\ arXiv:0908.3909 Date: Wed, 26 Aug 2009 21:37:04 GMT (17kb) Title: Holographic Derivation of Kerr-Newman Scattering Amplitudes for General Charge and Spin Authors: Thomas Hartman, Wei Song, and Andrew Strominger Categories: hep-th Comments: 22 pages \\ Near-superradiant scattering of charged scalars and fermions by a near-extreme Kerr-Newman black hole and photons and gravitons by a near-extreme Kerr black hole are computed as certain Fourier transforms of correlators in a two-dimensional conformal field theory. The results agree with the classic spacetime calculations from the 1970s, thereby providing good evidence for a conjectured Kerr-Newman/CFT correspondence. \\ ( http://arxiv.org/abs/0908.3909 , 17kb) ------------------------------------------------------------------------------ \\ arXiv:0908.3918 Date: Wed, 26 Aug 2009 23:57:25 GMT (202kb) Title: Black Holes in the Dilatonic Einstein-Gauss-Bonnet Theory in Various Dimensions IV - Topological Black Holes with and without Cosmological Term Authors: Nobuyoshi Ohta and Takashi Torii Categories: hep-th Comments: 28 pages, 11 figures, 1 table Report-no: KU-TP 033 \\ We study black hole solutions in the Einstein gravity with Gauss-Bonnet term, the dilaton and a positive "cosmological constant" in various dimensions. Physically meaningful black holes with a positive cosmological term are obtained only for those with $(D-2)$-dimensional hyperbolic space of negative curvature and $D>4$. We construct such black hole solutions of various masses numerically in $D=5,6$ and 10 dimensional spacetime and discuss their properties. In spite of the positive cosmological constant the spacetime approach anti-de Sitter spacetime asymptotically. The black hole solutions exist for a certain range of the horizon radius, i.e., there are lower and upper bounds for the size of black holes. We also argue that it is quite plausible that there is no black hole solution for hyperbolic space in the case of no cosmological constant. \\ ( http://arxiv.org/abs/0908.3918 , 202kb) ------------------------------------------------------------------------------ \\ arXiv:0908.3921 Date: Thu, 27 Aug 2009 00:55:20 GMT (39kb) Title: Rotating mesons in the presence of higher derivative corrections from gauge-string duality Authors: M. Ali-Akbari and K. Bitaghsir Fadafan Categories: hep-th Comments: 21 pages, 11 figures \\ We consider a rotating quark-antiquark $(q\bar{q})$ pair in $\mathcal{N}=4$ thermal plasma. By using AdS/CFT correspondence, the properties of this system have been investigated. We study variation of rotating string radius at the boundary as a function of the tip of U-shape string and angular velocity of rotating meson. We also extend the results to the higher derivative corrections i.e. ${\cal{R}}^2$ and ${\cal{R}}^4$ which correspond to finite coupling corrections on the rotating quark-antiquark system in the hot plasma. In ${\cal{R}}^4$ case and for fixed angular velocity as $\lambda^{-1}$ decreases the string endpoints get more and more separated. To study ${\cal{R}}^2$ corrections, rotating quark-antiquark system in Gauss-Bonnet background has been considered. We summarize the effects of these corrections in the conclusion section. \\ ( http://arxiv.org/abs/0908.3921 , 39kb) ------------------------------------------------------------------------------ \\ arXiv:0908.3938 Date: Thu, 27 Aug 2009 07:57:50 GMT (288kb) Title: Operator with large spin and spinning D3-brane Authors: Dongmin Gang, Jae-Sung Park, Satoshi Yamaguchi Categories: hep-th Comments: 16 pages, 4 figures Report-no: SNUTP 09-011 \\ We consider the conformal dimension of an operator with large spin, using a spinning D3-brane with electric flux in AdS_5 x S^5 instead of spinning fundamental string. This spinning D3-brane solution seems to correspond to an operator made by taking trace in a large symmetric representation. The conformal dimension, the spin and the R-charge show a scaling relation in a certain region of parameters. In the small string charge limit, the result is consistent with the fundamental string picture. There is a phase transition when the fundamental string charge become larger than a certain critical value; there is no stable D3-brane solution above the critical value. \\ ( http://arxiv.org/abs/0908.3938 , 288kb) ------------------------------------------------------------------------------ \\ arXiv:0908.3940 Date: Thu, 27 Aug 2009 07:19:28 GMT (12kb) Title: Spontaneous breaking of symmetry in Moyal spacetime with twisted Poincar\'e symmetry Authors: T R Govindarajan Categories: hep-th Comments: 10 pages, Talk at Max Born symposium, 2009 \\ After briefly reviewing the gauge symmetry in Moyal spacetimes, we analyse aspects of symmetry breaking within a quantisation program preserving the twisted Poincar\'e symmetry. We develop the LSZ approach for Moyal spacetimes and derive a mapping for scattering amplitudes on these spacetimes from the corresponding ones on the commutative spacetime. This map applies in the presence of spontaneous breakdown of symmetries as well. We also derive Goldstone's theorem on Moyal spacetime. The formalism developed here can be directly applied to the twisted standard model. \\ ( http://arxiv.org/abs/0908.3940 , 12kb) ------------------------------------------------------------------------------ \\ arXiv:0908.3942 Date: Thu, 27 Aug 2009 07:23:57 GMT (36kb) Title: Casimir Piston of Real Materials and its Application to Multi-Layer Models Authors: L.P. Teo Categories: hep-th Comments: 17 pages, 6 figures \\ In this article, we derive the formula for the Casimir force acting on a piston made of real material moving inside a perfectly conducting rectangular box. It is shown that by taking suitable limits, one recovers the formula for the Casimir force acting on a perfectly conducting piston or an infinitely permeable piston. Lipshitz formula for finite temperature Casimir force acting on parallel plates made of real materials is re-derived by considering the five-layer model in the context of piston approach. It is observed that the divergences of the Casimir force will only cancel under certain conditions, for example, when the regions separated by the plates are filled with isorefractive media. \\ ( http://arxiv.org/abs/0908.3942 , 36kb) ------------------------------------------------------------------------------ \\ arXiv:0908.3949 Date: Thu, 27 Aug 2009 08:17:21 GMT (43kb) Title: Graceful exit via monopoles in a theory with O'Raifeartaigh type supersymmetry breaking Authors: Brijesh Kumar and Urjit Yajnik Categories: hep-th Comments: 20 pages, 7 figures \\ We study the stability of supersymmetry breaking metastable vacua and supersymmetric vacua in the presence of solitons. The metastable vacua of supersymmetric QCD and those found elsewhere such as in models based on the SU(5) grand unified group support the existence of topological solitons. The vacua containing such topological defects can become unstable against decay into lower energy configurations. We show for a specific model that a finite region of the available parameter space of couplings becomes disallowed due to the presence of monopoles. In a manner similar to previous studies based on cosmic strings, it is shown that soliton solutions arising in supersymmetric theories can put constraints on the range of allowed values of the couplings arising in the theories. Implications for cosmology are discussed. \\ ( http://arxiv.org/abs/0908.3949 , 43kb) ------------------------------------------------------------------------------ \\ arXiv:0908.3976 Date: Thu, 27 Aug 2009 10:45:58 GMT (97kb) Title: Hawking Temperature in Taub-NUT (A)dS spaces via the Generalized Uncertainty Principle Authors: Seyen Kouwn, Chong Oh Lee, Phillial Oh Categories: hep-th Comments: 14 pages, 5 figures \\ Using the extended forms of the Heisenberg uncertainty principle from string theory and the quantum gravity theory, we drived Hawking temperature of a Taub-Nut-(A)dS black hole. In spite of their distinctive natures such as asymptotically locally flat and breakdown of the area theorem of the horizon for the black holes, we show that the corrections to Hawking temperature by the generalized versions of the the Heisenberg uncertainty principle increases like the Schwarzschild-(A)dS black hole and give the reason why the Taub-Nut-(A)dS metric may have AdS/CFT dual picture. \\ ( http://arxiv.org/abs/0908.3976 , 97kb) ------------------------------------------------------------------------------ \\ arXiv:0908.4027 Date: Thu, 27 Aug 2009 15:01:34 GMT (8kb) Title: Onset of magnetic monopole-antimonopole condensation Authors: Ralf Hofmann Categories: hep-th Comments: 8 pages, no figures \\ We determine the critical strength of the effective electric coupling for the onset of Bose condensation of stable magnetic monopoles and antimonopoles in SU(2) Yang-Mills thermodynamics. Two scenarios are considered: infinitely fast and infinitely slow downward approach of the critical temperature. Our results support the claim that the first lepton family and the weak interactions emerge from pure SU(2) gauge dynamics of scale $\sim 0.5 $MeV. \\ ( http://arxiv.org/abs/0908.4027 , 8kb) ------------------------------------------------------------------------------ \\ arXiv:0908.4033 Date: Thu, 27 Aug 2009 15:27:00 GMT (2850kb,D) Title: Higgsing M2-brane Theories Authors: John Davey, Amihay Hanany, Noppadol Mekareeya and Giuseppe Torri Categories: hep-th Comments: 79 pages, 43 figures, 8 tables Report-no: Imperial/TP/09/AH/03 \\ Connections between different M2-brane theories are established via the Higgs mechanism, which can be most efficiently studied on brane tilings. This leads to several M2-brane models, with brane tilings or Chern-Simons levels which have not been considered so far. The moduli spaces of these models are identified and examined in detail. The toric diagrams are constructed using Kasteleyn matrices and the forward algorithm. \\ ( http://arxiv.org/abs/0908.4033 , 2850kb) ------------------------------------------------------------------------------ \\ arXiv:0908.4035 Date: Thu, 27 Aug 2009 15:56:28 GMT (612kb) Title: Note on Cross-correlations between Curvature and Isocurvature Perturbations during Inflation Authors: Xian Gao Categories: hep-th Comments: 18 pages, 8 figures Report-no: CAS-KITPC/ITP-148 \\ We investigate the effects of coupling between curvature and isocurvature perturbations during cosmological inflation. We study the generalized two-field inflation model. By using field-theoretical perturbative analysis, we calculate the cross-spectrum between curvature and isocurvature perturbations and also the corrections to curvature and isocurvature power spectra. We find the cross-correlation, which was previously believe to be first-order in slow-roll parameter, can be enhanced by small $c_e/c_a$ ratio. \\ ( http://arxiv.org/abs/0908.4035 , 612kb) ------------------------------------------------------------------------------ \\ arXiv:0908.4052 Date: Thu, 27 Aug 2009 18:21:13 GMT (119kb) Title: Quantization of Integrable Systems and Four Dimensional Gauge Theories Authors: Nikita A. Nekrasov, Samson L. Shatashvili Categories: hep-th Comments: 32 pp. 1 figure Report-no: TCD-MATH-09-19, HMI-09-09, IHES/P/09/38 \\ We study four dimensional N=2 supersymmetric gauge theory in the Omega-background with the two dimensional N=2 super-Poincare invariance. We explain how this gauge theory provides the quantization of the classical integrable system underlying the moduli space of vacua of the ordinary four dimensional N=2 theory. The epsilon-parameter of the Omega-background is identified with the Planck constant, the twisted chiral ring maps to quantum Hamiltonians, the supersymmetric vacua are identified with Bethe states of quantum integrable systems. This four dimensional gauge theory in its low energy description has two dimensional twisted superpotential which becomes the Yang-Yang function of the integrable system. We present the thermodynamic-Bethe-ansatz like formulae for these functions and for the spectra of commuting Hamiltonians following the direct computation in gauge theory. The general construction is illustrated at the examples of the many-body systems, such as the periodic Toda chain, the elliptic Calogero-Moser system, and their relativistic versions, for which we present a complete characterization of the L^2-spectrum. We very briefly discuss the quantization of Hitchin system. \\ ( http://arxiv.org/abs/0908.4052 , 119kb) %-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%- ------------------------------------------------------------------------------ \\ arXiv:0908.3509 (*cross-listing*) Date: Mon, 24 Aug 2009 22:05:26 GMT (16kb) Title: Cosmological Magnetic Fields from Inflation and Backreaction Authors: Sugumi Kanno, Jiro Soda and Masa-aki Watanabe Categories: astro-ph.CO gr-qc hep-ph hep-th Comments: 14 pages, 1 figure Report-no: DCPT-09/61, KUNS-2229 \\ We study the backreaction problem in a mechanism of magnetogenesis from inflation. In usual analysis, it has been assumed that the backreaction due to electromagnetic fields spoils inflation once it becomes important. However, there exists no justification for this assumption. Hence, we analyze magnetogenesis from inflation by taking into account the backreaction. On the contrary to the naive expectation, we show that inflation still continues even after the backreaction begins to work. Nevertheless, it turns out that creation of primordial magnetic fields is significantly suppressed due to the backreaction. \\ ( http://arxiv.org/abs/0908.3509 , 16kb) %%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%% ------------------------------------------------------------------------------ \\ arXiv:0707.3229 (*cross-listing*) replaced with revised version Thu, 27 Aug 2009 17:40:49 GMT (39kb) Title: Leibniz seminorms for "Matrix algebras converge to the sphere'' Authors: Marc A. Rieffel (U. C. Berkeley) Categories: math.OA hep-th math.MG Comments: 46 pages. Many local improvements, some important. Main theorem unchanged MSC-class: 46L87 (Primary); 53C23, 58B34, 81R15, 81R30 (Secondary) \\ ( http://arxiv.org/abs/0707.3229 , 39kb) ------------------------------------------------------------------------------ \\ arXiv:0810.4699 replaced with revised version Thu, 27 Aug 2009 09:22:47 GMT (57kb) Title: N=4 Gauged Supergravity from Duality-Twist Compactifications of String Theory Authors: R A Reid-Edwards and B Spanjaard Categories: hep-th Comments: 59 pages, typos corrected Journal-ref: JHEP 0812:052,2008 DOI: 10.1088/1126-6708/2008/12/052 \\ ( http://arxiv.org/abs/0810.4699 , 57kb) ------------------------------------------------------------------------------ \\ arXiv:0901.0796 replaced with revised version Thu, 27 Aug 2009 08:53:42 GMT (14kb) Title: Vector-Field Domain Walls Authors: J.L. Chkareuli, Archil Kobakhidze, Raymond R. Volkas Categories: hep-th gr-qc hep-ph Comments: Published version, to appear in Physical Review D \\ ( http://arxiv.org/abs/0901.0796 , 14kb) ------------------------------------------------------------------------------ \\ arXiv:0903.1346 (*cross-listing*) replaced with revised version Thu, 27 Aug 2009 19:52:26 GMT (23kb) Title: Effects of Space-Time Curvature on Spin-1/2 Particle Zitterbewegung Authors: Dinesh Singh, Nader Mobed Categories: gr-qc hep-th quant-ph Comments: 22 pages, no figures; slight revisions; accepted for publication in Classical and Quantum Gravity \\ ( http://arxiv.org/abs/0903.1346 , 23kb) ------------------------------------------------------------------------------ \\ arXiv:0903.4159 replaced with revised version Thu, 27 Aug 2009 15:10:50 GMT (622kb) Title: On Casimir Pistons Authors: V.K.Oikonomou Categories: hep-th Comments: 20 pages, To be published in MPLA \\ ( http://arxiv.org/abs/0903.4159 , 622kb) ------------------------------------------------------------------------------ \\ arXiv:0906.0442 (*cross-listing*) replaced with revised version Thu, 27 Aug 2009 06:39:46 GMT (150kb) Title: Double Type-II Seesaw, Baryon Asymmetry and Dark Matter for Cosmic e^\pm Excesses Authors: Pei-Hong Gu, Hong-Jian He, Utpal Sarkar, Xinmin Zhang Categories: hep-ph astro-ph.CO hep-th Comments: 9 pages, 4 figures, minor rewording, final PRD version (in Press) \\ ( http://arxiv.org/abs/0906.0442 , 150kb) ------------------------------------------------------------------------------ \\ arXiv:0906.2957 (*cross-listing*) replaced with revised version Thu, 27 Aug 2009 10:50:58 GMT (1392kb,D) Title: Phenomenology of Supersymmetric Gauge-Higgs Unification Authors: Felix Brummer, Sylvain Fichet, Arthur Hebecker, Sabine Kraml Categories: hep-ph hep-th Comments: 35 pages, 11 figures, 2 tables, uses pdflatex; 2 numbers in Table 1 corrected, matches journal version Report-no: HD-THEP-09-10, LPSC 09-54, DCPT/09/74, IPPP/09/37 Journal-ref: JHEP08 (2009) 011 \\ ( http://arxiv.org/abs/0906.2957 , 1392kb) ------------------------------------------------------------------------------ \\ arXiv:0907.1156 replaced with revised version Thu, 27 Aug 2009 06:19:36 GMT (43kb) Title: An AdS/CFT Connection between Boltzmann and Einstein Authors: Ramakrishnan Iyer, Ayan Mukhopadhyay Categories: hep-th Comments: 53 pages, 1 figure; references and small clarifications through footnotes and a subsection have been added \\ ( http://arxiv.org/abs/0907.1156 , 43kb) ------------------------------------------------------------------------------ \\ arXiv:0907.1878 (*cross-listing*) replaced with revised version Thu, 27 Aug 2009 17:20:24 GMT (117kb) Title: Signatures of Singlet Neutrinos in Large Extra Dimensions at the LHC Authors: Douglas M. Gingrich Categories: hep-ph gr-qc hep-th Comments: Addressed comments by reviewer \\ ( http://arxiv.org/abs/0907.1878 , 117kb) ------------------------------------------------------------------------------ \\ arXiv:0907.4795 (*cross-listing*) replaced with revised version Wed, 26 Aug 2009 21:40:43 GMT (188kb) Title: Stability of the Einstein static universe in presence of vacuum energy Authors: Saulo Carneiro and Reza Tavakol Categories: astro-ph.CO gr-qc hep-th Comments: Some references added Journal-ref: Phys. Rev. D 80, 043528 (2009) DOI: 10.1103/PhysRevD.80.043528 \\ ( http://arxiv.org/abs/0907.4795 , 188kb) ------------------------------------------------------------------------------ \\ arXiv:0907.5159 (*cross-listing*) replaced with revised version Thu, 27 Aug 2009 03:49:53 GMT (52kb) Title: $CPT$ Violating Electrodynamics and Chern-Simons Modified Gravity Authors: Mingzhe Li, Yi-Fu Cai, Xiulian Wang, Xinmin Zhang Categories: hep-ph astro-ph.CO gr-qc hep-th Comments: 11 pages, 1 figure, the version to appear in Physics Letters B \\ ( http://arxiv.org/abs/0907.5159 , 52kb) ------------------------------------------------------------------------------ \\ arXiv:0907.5327 replaced with revised version Thu, 27 Aug 2009 02:49:40 GMT (28kb) Title: Finite Temperature Effective Actions Authors: Ashok Das and J. Frenkel Categories: hep-th Comments: 5 pages, revtex, typos fixed, references added, to be published in Physics Letters B \\ ( http://arxiv.org/abs/0907.5327 , 28kb) ------------------------------------------------------------------------------ \\ arXiv:0907.5583 replaced with revised version Thu, 27 Aug 2009 12:04:01 GMT (24kb) Title: Torsion formulation of gravity Authors: M. A. Lledo, L. Sommovigo Categories: hep-th Comments: AMS-LaTeX, 35 pages Report-no: IFIC/09-39, DISTA/PHYS-020/09 \\ ( http://arxiv.org/abs/0907.5583 , 24kb) ------------------------------------------------------------------------------ \\ arXiv:0908.1387 replaced with revised version Wed, 26 Aug 2009 20:05:05 GMT (38kb) Title: Warped Kaluza-Klein Dark Matter Authors: Andrew R. Frey, Rebecca J. Danos, James M. Cline (McGill University) Categories: hep-th astro-ph.CO hep-ph Comments: 37pp; v2. references, minor clarification \\ ( http://arxiv.org/abs/0908.1387 , 38kb) ------------------------------------------------------------------------------ \\ arXiv:0908.1738 replaced with revised version Thu, 27 Aug 2009 11:50:21 GMT (9kb) Title: Ternutator Identities Authors: Chandrashekar Devchand, David Fairlie, Jean Nuyts, Gregor Weingart Categories: hep-th Comments: 12 pages, citation added \\ ( http://arxiv.org/abs/0908.1738 , 9kb) ------------------------------------------------------------------------------ \\ arXiv:0908.2645 replaced with revised version Thu, 27 Aug 2009 14:10:08 GMT (0kb,I) Title: On the validity of the 'New ansatz for metric operator calculation in pseudo-Hermitian field theory'" Authors: Abouzeid M. Shalaby Categories: hep-th Comments: This paper has been withdrawn by the author(s), due a mistake of factor 1/2 \\ ( http://arxiv.org/abs/0908.2645 , 0kb) ------------------------------------------------------------------------------ \\ arXiv:0908.3493 replaced with revised version Thu, 27 Aug 2009 17:21:23 GMT (92kb) Title: Notes on Properties of Holographic Matter Authors: Andreas Karch, Manuela Kulaxizi, Andrei Parnachev Categories: hep-th Comments: 17 pages, 2 figures; v2: corrected error in Section 6, conclusions unchanged \\ ( http://arxiv.org/abs/0908.3493 , 92kb) ------------------------------------------------------------------------------ \\ arXiv:0908.3569 (*cross-listing*) replaced with revised version Thu, 27 Aug 2009 01:55:25 GMT (26kb) Title: Auxiliary linear problem, difference Fay identities and dispersionless limit of Pfaff-Toda hierarchy Authors: Kanehisa Takasaki Categories: nlin.SI hep-th math-ph math.MP Comments: 49 pages, no figure, usepackage amsmath,amssymb,amsthm; (v2) several typos are corrected \\ ( http://arxiv.org/abs/0908.3569 , 26kb) ------------------------------------------------------------------------------ \\ arXiv:0908.3672 replaced with revised version Wed, 26 Aug 2009 22:11:41 GMT (642kb) Title: Static Hopfions in the extended Skyrme-Faddeev model Authors: L. A. Ferreira, Nobuyuki Sawado and Kouichi Toda Categories: hep-th math-ph math.MP nlin.SI Comments: 22 pages, 42 figures, minor corrections \\ ( http://arxiv.org/abs/0908.3672 , 642kb) %%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%--- 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. Author self-submissions are exceedingly preferred. E-mail submissions have been discontinued in favor of better support for Web submissions. See http://arXiv.org/help/uploads