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Related papers: Holographic Schwinger effect in a soft wall AdS/QC…

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We study the optical conductivity of 1+1 dimensional systems using soft wall model in the bottom up approach of AdS/CFT (anti-de Sitter/conformal field theory) duality. We find the numerical results for optical conductivity and investigate…

High Energy Physics - Theory · Physics 2016-12-01 Neha Bhatnagar , Sanjay Siwach

We study the holographic QCD in the hadronic medium by using the soft wall model. We discuss the Hawking-Page transition between Reissner-Nordstr\"{o}m AdS black hole and thermal charged AdS of which the geometries correspond to…

High Energy Physics - Theory · Physics 2014-11-13 Chanyong Park , Do-Young Gwak , Bum-Hoon Lee , Yumi Ko , Sunyoung Shin

We examine the analogue one-dimensional quantum mechanics problem associated with bulk scalars and fermions in a slice of AdS_5. The ``Schroedinger'' potential can take on different qualitative shapes depending on the values of the mass…

High Energy Physics - Theory · Physics 2008-11-26 Brian Batell , Andrew Larkoski

The soft-wall AdS/QCD model, modified by a positive-sign dilaton metric, leads to a remarkable one-parameter description of nonperturbative hadron dynamics. The model predicts a zero-mass pion for zero-mass quarks and a Regge spectrum of…

High Energy Physics - Phenomenology · Physics 2011-03-02 Stanley J. Brodsky , Guy F. de Teramond

Holographic QCD provides a unique framework in which to compute QCD observables. In this talk we summarize recent numerical work on computing the pion electromagnetic form factor using an AdS/QCD action that includes both spontaneous and…

High Energy Physics - Phenomenology · Physics 2017-08-23 Herry J. Kwee , Richard F. Lebed

Recently Polchinski and Strassler reproduced the high energy QCD scaling at fixed angles from a gauge string duality inspired in AdS/CFT correspondence. In their approach a confining gauge theory is taken as approximately dual to an AdS…

High Energy Physics - Theory · Physics 2008-11-26 Henrique Boschi-Filho , Nelson R. F. Braga

In this work we study the analytical properties of a 2+1 dimensional magnetically charged holographic superconductor in $AdS_4$. We obtain the critical chemical potential $\mu_c$ analytically, using the Sturm-Liouville variational approach.…

General Physics · Physics 2012-11-20 M. R. Setare , D. Momeni , R. Myrzakulov , Muhammad Raza

AdS/QCD, the correspondence between theories in a modified five-dimensional anti-de Sitter space and confining field theories in physical space-time, provides a remarkable semiclassical model for hadron physics. Light-front holography…

High Energy Physics - Phenomenology · Physics 2014-11-20 Stanley J. Brodsky , Guy F. de Teramond

According to the gauge-gravity duality, we systematically study the Schwinger effect and electric instability with anisotropy in a top-down holographic approach. The anisotropic black brane and bubble (soliton) background in IIB…

High Energy Physics - Theory · Physics 2022-08-23 Si-wen Li , Sen-kai Luo , Hao-qian Li

We apply the holographic method to 5D gauge theories on the warped interval. Our treatment includes the scalars associated with the fifth gauge field component, which appear as 4D Goldstone bosons in the holographic effective action.…

High Energy Physics - Theory · Physics 2010-10-27 Giuliano Panico , Andrea Wulzer

We construct an improved soft-wall AdS/QCD model with a cubic coupling term of the dilaton and the bulk scalar field. The background fields in this model are solved from the Einstein-dilaton system with a nontrivial dilaton potential, which…

High Energy Physics - Phenomenology · Physics 2020-06-23 Zhen Fang , Yue-Liang Wu

We extend our proposal for static patch holography made in part I (arXiv:2309.07290) to the case of electromagnetism. Using the on-shell action on de Sitter Schwinger-Keldysh (dS-SK) geometry, we derive the influence phase of an observer in…

High Energy Physics - Theory · Physics 2025-06-27 R. Loganayagam , Omkar Shetye

I compare two holographic mechanisms giving to the graviton a parametrically-small supersymmetric mass $m_g$ in Anti-de Sitter spacetime. In the context of bi-metric gravity these mechanisms couple `weakly' two initially decoupled…

High Energy Physics - Theory · Physics 2019-07-24 Constantin Bachas

This paper, among other things, talks about possible research on the holographic Schwinger effect with a rotating probe D3-brane. We discover that for the zero temperature case in the Schwinger effect, the faster the angular velocity and…

High Energy Physics - Theory · Physics 2023-08-21 Hao Xu , M. Ilyas , Yong-Chang Huang

Phenomenological AdS/QCD models, like hard wall and soft wall, provide hadronic mass spectra in reasonable consistency with experimental and (or) lattice results. These simple models are inspired in the AdS/CFT correspondence and assume…

High Energy Physics - Theory · Physics 2016-11-01 Nelson R. F. Braga , M. A. Martin Contreras , Saulo Diles

Using the Witten-Sakai-Sugimoto model in the D0-D4 background, we holographically compute the vacuum decay rate of the Schwinger effect in this model. Our calculation contains the influence of the D0-brane density which could be identified…

High Energy Physics - Theory · Physics 2019-11-12 Wenhe Cai , Kang-le Li , Si-wen Li

A remarkable holographic feature of dynamics in AdS space in five dimensions is that it is dual to Hamiltonian theory in physical space-time, quantized at fixed light-front time {\tau} = t+z/c. This light-front holographic principle…

High Energy Physics - Phenomenology · Physics 2013-01-15 Stanley J. Brodsky , Guy F. de Téramond

We study the phase structure of QCD matter using a dynamical Einstein--Maxwell--Dilaton holographic model, using both thermodynamic and dynamical observables. Depending on the warp factor, the model admits either a standard…

High Energy Physics - Theory · Physics 2025-09-25 Leila Shahkarami , Farid Charmchi

We study the response of a (2+1)-dimensional gauge theory to an external rotating electric field. In the strong coupling regime such system is formulated holographically in a top-down model constructed by intersecting D3- and D5-branes…

High Energy Physics - Theory · Physics 2022-09-09 Ana Garbayo , Javier Mas , Alfonso V. Ramallo

The correspondence between theories in anti-de Sitter space and conformal field theories in physical space-time leads to an analytic, semiclassical model for strongly-coupled QCD. Light-front holography allows hadronic amplitudes in the AdS…

High Energy Physics - Phenomenology · Physics 2009-04-24 Stanley J. Brodsky , Guy F. de Teramond