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A five dimensional brane cosmology with non-minimally coupled scalar field to gravity has been considered in a Jordan-Brans-Dicke frame. We derive an effective four dimensional field equations on a 3+1 dimensional brane where the fifth…

General Relativity and Quantum Cosmology · Physics 2009-10-31 Luis E. Mendes , Anupam Mazumdar

We consider the quantum effects of bulk matter (scalars, spinors) in the Randall-Sundrum AdS$_5$ brane-world at nonzero temperature. The thermodynamic energy (modulus potential) is evaluated at low and high temperatures. This potential has…

High Energy Physics - Theory · Physics 2009-01-14 Iver Brevik , Kimball A. Milton , Shin'ichi Nojiri , Sergei D. Odintsov

Spinor fields on 5-dimensional Lorentzian manifolds are classified, according to the geometric Fierz identities that involve their bilinear covariants. Based upon this classification that generalises the celebrated 4-dimensional Lounesto…

High Energy Physics - Theory · Physics 2016-09-22 K. P. S. de Brito , Roldao da Rocha

We study fermion modes localized on the kink in the 1+1 dimensional $\phi^4$ model, coupled to the Dirac fermions with backreaction. Using numerical methods we construct self-consistent solutions of the corresponding system of coupled…

High Energy Physics - Theory · Physics 2019-11-13 V. Klimashonok , I. Perapechka , Ya. Shnir

An analysis is given of the local phase space of gravity coupled to matter to second order in perturbation theory. Working in local regions with boundaries at finite distance, we identify matter, Coulomb, and additional boundary modes. The…

General Relativity and Quantum Cosmology · Physics 2024-02-09 Viktoria Kabel , Časlav Brukner , Wolfgang Wieland

We study a model comprising $N$ flavors of K\"ahler Dirac fermion propagating on a triangulated two dimensional disk which is constrained to have a negative average bulk curvature. Dirichlet boundary conditions are chosen for the fermions.…

High Energy Physics - Lattice · Physics 2024-08-08 Muhammad Asaduzzaman , Simon Catterall , Abhishek Samlodia

A manifestly gauge-invariant theory of gravitational fluctuations of brane-world scenarios is discussed. Without resorting to any specific gauge choice, a general method is presented in order to disentangle the fluctuations of the brane…

High Energy Physics - Theory · Physics 2007-05-23 Massimo Giovannini

We investigate many-body localization of interacting spinless fermions in a one-dimensional disordered and tilted lattice. The fermions undergo energy-dependent transitions from ergodic to Stark many-body localization driven by the tilted…

Quantum Physics · Physics 2021-03-03 Li Zhang , Yongguan Ke , Wenjie Liu , Chaohong Lee

We show how the gravity, gauge, and matter fields are induced on dynamically localized brane world (domain wall, vortex etc.). Solitonic solutions localized on a curved brane in certain field theories in higher dimensions are given in terms…

High Energy Physics - Theory · Physics 2007-05-23 Keiichi Akama

In brane world string models with large extra dimensions, there are processes where fermion and antifermion (or two gluons) can annihilate producing a light particle (e.g. gluon) carrying transverse momentum and a Kaluza-Klein graviton or…

High Energy Physics - Phenomenology · Physics 2014-11-18 Diego Chialva , Roberto Iengo , Jorge G. Russo

In order to localize fermions on branes with codimension one, one usually introduces the Yukawa coupling between fermions and background scalar fields or the recently proposed derivative fermion-scalar coupling in [Phys. Rev. D 89 (2014)…

High Energy Physics - Theory · Physics 2017-06-14 Yan-Yan Li , Yu-Peng Zhang , Wen-Di Guo , Yu-Xiao Liu

We examine the cosmology induced on a brane moving in the background of a five-dimensional black hole, solution of the string effective action. The evolution, determined by the Israel junction conditions is found to be compatible with an…

High Energy Physics - Theory · Physics 2014-06-02 C. Chiou-Lahanas , G. A. Diamandis , B. C. Georgalas

In a recent paper, a model for describing the quantum dynamics of massive particles in a non-commutative two-sheeted spacetime was proposed. This model considers a universe made with two spacetime sheets embedded in a 5D bulk where the…

High Energy Physics - Theory · Physics 2007-05-23 Michael Sarrazin , Fabrice Petit

We explore observational constraints on a cosmological brane-world scenario in which the bulk is not empty. Rather, exchange of mass-energy between the bulk and the bane is allowed. The evolution of matter fields to an observer on the brane…

Astrophysics · Physics 2009-11-13 K. Umezu , K. Ichiki , T. Kajino , G. J. Mathews , R. Nakamura , M. Yahiro

The Randall-Sundrum warped braneworld model is generalised to six and higher dimensions such that the warping has a non-trivial dependence on more than one dimension. This naturally leads to a brane-box like configuration alongwith scalar…

High Energy Physics - Theory · Physics 2008-11-26 Debajyoti Choudhury , Soumitra SenGupta

A brane-world universe consists of a 4-dimensional brane embedded into a 5-dimensional space-time (bulk). We apply the Arnowitt-Deser-Misner decomposition to the brane-world, which results in a 3+1+1 break-up of the bulk. We present the…

General Relativity and Quantum Cosmology · Physics 2009-05-15 Zoltán Kovács , László Á. Gergely

We point out that the effective theory for the Randall-Sundrum braneworld models with bulk fields contains the baryon number violation process depending on the spacetime dynamics. Combining to the curvature-current interaction, the net…

High Energy Physics - Phenomenology · Physics 2009-11-10 Tetsuya Shiromizu , Kazuya Koyama

We study the propagation of gravitons within 5-D supersymmetric braneworld models with a bulk scalar field. The setup considered here consists of a 5-D bulk spacetime bounded by two 4-D branes localized at the fixed points of an $S^1/Z_2$…

High Energy Physics - Theory · Physics 2009-04-17 Gonzalo A. Palma

We review recent advances in experimental and theoretical understanding of spin transport in strongly interacting Fermi gases. The central new phenomenon is the observation of a lower bound on the (bare) spin diffusivity in the strongly…

Quantum Gases · Physics 2019-03-13 Tilman Enss , Joseph H. Thywissen

In this paper we apply the five-dimensional $f(T)$ gravity with $f(T)=T+k T^n$ to brane scenario to explore the solutions under a given warp factor, and we find that the analytic domain wall solution will be a double-kink solution when the…

High Energy Physics - Theory · Physics 2012-08-03 Jie Yang , Yun-Liang Li , Yuan Zhong , Yang Li
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