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Related papers: Holographic KMS relations at finite density

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In this work we initiate the study of open effective field theories of fermions interacting with holographic baths. As a first step in this direction, we explain how the recently identified holographic Schwinger-Keldysh saddles naturally…

High Energy Physics - Theory · Physics 2020-11-18 R. Loganayagam , Krishnendu Ray , Akhil Sivakumar

We provide a holographic prescription to compute real-time thermal correlators with arbitrary operator ordering. In field theory, these correlation functions are captured by a multi-fold Schwinger-Keldysh time contour. We propose a…

High Energy Physics - Theory · Physics 2025-10-07 Martin Ammon , Jette Germerodt , Christoph Sieling , Julio Virrueta

We initiate the study of open quantum field theories using holographic methods. Specifically, we consider a quantum field theory (the system) coupled to a holographic field theory at finite temperature (the environment). We investigate the…

High Energy Physics - Theory · Physics 2020-08-26 Chandan Jana , R. Loganayagam , Mukund Rangamani

We compute fully retarded scalar three-point functions of holographic CFTs at finite temperature using real-time holography. They describe the nonlinear response of a holographic medium under scalar forcing, and display single and…

High Energy Physics - Theory · Physics 2023-05-03 Christiana Pantelidou , Benjamin Withers

We construct black hole saddles dual to real-time/Schwinger-Keldysh (SK) path integrals with arbitrary splits of the thermal density matrix generalizing the holographic SK prescription in \cite{Glorioso:2018mmw}. Using a scalar probe on the…

High Energy Physics - Theory · Physics 2024-10-25 Akhil Sivakumar

We develop a prescription for computing real-time correlation functions defined on a Schwinger-Keldysh contour for non-equilibrium systems using gravity. The prescription involves a new analytic continuation procedure in a black hole…

High Energy Physics - Theory · Physics 2018-12-21 Paolo Glorioso , Michael Crossley , Hong Liu

Using real-time holography, we investigate fluctuation-dissipation relations in holographic systems at finite density. In the bulk, it corresponds to the study of scattering of a charged scalar field against a charged black hole background,…

High Energy Physics - Theory · Physics 2025-08-12 Shivam K. Sharma

We consider weakly-coupled QFT in AdS at finite temperature. We compute the holographic thermal two-point function of scalar operators in the boundary theory. We present analytic expressions for leading corrections due to local quartic…

High Energy Physics - Theory · Physics 2021-06-30 Luis F. Alday , Murat Kologlu , Alexander Zhiboedov

We construct a holographic dual of the Schwinger-Keldysh effective action for the dissipative low-energy dynamics of relativistic charged matter at strong coupling in a fixed thermal background. To do so, we use a mixed signature bulk…

High Energy Physics - Theory · Physics 2019-06-26 Jan de Boer , Michal P. Heller , Natalia Pinzani-Fokeeva

We analyze real-time thermal correlation functions of conserved currents in holographic field theories using the grSK geometry, which provides a contour prescription for their evaluation. We demonstrate its efficacy, arguing that there are…

High Energy Physics - Theory · Physics 2023-08-01 R. Loganayagam , Mukund Rangamani , Julio Virrueta

We compute Schwinger-Keldysh effective action for a relativistic heavy quark (with constant background velocity) in strongly coupled N = 4 supersymmetric Yang-Mills plasma. The holographic dual description involves a noisy trailing string…

High Energy Physics - Theory · Physics 2021-10-04 Yanyan Bu , Biye Zhang

We study the conventional holographic recipes and its real-time extensions in the context of the correspondence between SYK quantum mechanics and JT gravity. We first observe that only closed contours are allowed to have a 2d space-time…

High Energy Physics - Theory · Physics 2023-03-08 Raúl Arias , Marcelo Botta-Cantcheff , Pedro J. Martinez

We construct back-reacted asymptotically AdS_4 backgrounds with both electric and magnetic charge, at finite temperature and chemical potential. The system consists of a condensed bulk Dirac field hovering over a charged black brane. We…

High Energy Physics - Theory · Physics 2015-01-29 Daniel Carney , Mohammad Edalati

We apply the relation between deep learning (DL) and the AdS/CFT correspondence to a holographic model of QCD. Using a lattice QCD data of the chiral condensate at a finite temperature as our training data, the deep learning procedure…

High Energy Physics - Theory · Physics 2020-02-14 Koji Hashimoto , Sotaro Sugishita , Akinori Tanaka , Akio Tomiya

We have recently presented a geometry dual to a Schwinger-Keldysh closed time contour, with two equal $\beta/2$ length Euclidean sections, which can be thought of as dual to the Thermo Field Dynamics formulation of the boundary CFT. In this…

High Energy Physics - Theory · Physics 2019-04-08 Marcelo Botta-Cantcheff , Pedro J. Martínez , Guillermo A. Silva

By imposing the relativistic boundary term and Lorentz violating that in the dilatonic black brane with a Lifshitz like IR geometry and $AdS_4$ boundary, we study the properties of the spectral functions of the fermions. We find that in the…

High Energy Physics - Theory · Physics 2015-06-04 Wei-Jia Li , Jian-Pin Wu

We investigate the properties of holographic fermions in charged Lifshitz black holes at finite temperature through the AdS/CFT correspondence. In the charged Lifshitz background with the dynamical exponent $z=2$, we find that the…

High Energy Physics - Theory · Physics 2012-11-22 Li Qing Fang , Xian-Hui Ge , Xiao-Mei Kuang

We consider a holographic model of QCD at finite temperature with nonzero chemical potentials conjugate to $R$-charge densities. A critical surface of the confinement-deconfinement phase transition is shown for five-dimensional charged…

High Energy Physics - Phenomenology · Physics 2009-11-11 Kazuo Ghoroku , Akihiro Nakamura , Masanobu Yahiro

Starting from concrete AdS/CFT dual pairs, one can introduce ingredients which produce cosmological solutions, including metastable de Sitter and its decay to non-accelerating FRW. We present simple FRW solutions sourced by magnetic flavor…

High Energy Physics - Theory · Physics 2012-07-03 Xi Dong , Bart Horn , Shunji Matsuura , Eva Silverstein , Gonzalo Torroba

We consider the chiral phase transition relevant for QCD matter at finite temperature but with vanishing baryon density. Presumably, the chiral phase transition is of second order for two-flavor QCD in the chiral limit. Near the transition…

High Energy Physics - Theory · Physics 2025-07-30 Yanyan Bu , Zexin Yang
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