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相关论文: Dynamically probing strongly-coupled field theorie…

200 篇论文

We consider a strongly coupled field theory with a critical point and nonzero chemical potential at finite temperature, which is dual to an asymptotically AdS charged black hole. We study the evolution of the rescaled holographic subregion…

高能物理 - 理论 · 物理学 2021-06-30 Mahsa Lezgi , Mohammad Ali-Akbari

The holographic equilibration of a far-from-equilibrium strongly coupled gauge theory is investigated. The dynamics of a probe D7-brane in an AdS-Vaidya background is studied in the presence of an external time-dependent electric field.…

高能物理 - 理论 · 物理学 2017-11-22 M. Ali-Akbari , F. Charmchi

We employ the holographic quench technique to drive Einstein-Maxwell-scalar (EMs) black holes out of equilibrium and study the real-time dynamics therein. From the fully nonlinear dynamical simulations, a dynamically unstable…

广义相对论与量子宇宙学 · 物理学 2023-08-16 Qian Chen , Zhuan Ning , Yu Tian , Xiaoning Wu , Cheng-Yong Zhang , Hongbao Zhang

Motivated by the experimental search for the QCD critical point we perform simulations of a stochastic field theory with purely relaxational dynamics (model A). We verify the expected dynamic scaling of correlation functions. Using a finite…

核理论 · 物理学 2022-07-27 Thomas Schaefer , Vladimir Skokov

We study holographically the out of equilibrium dynamics of a finite size closed quantum system in 2+1 dimensions, modelled by the collapse of a shell of a massless scalar field in AdS4. In global coordinates there exists a variety of…

高能物理 - 理论 · 物理学 2015-06-19 Javier Abajo-Arrastia , Emilia da Silva , Esperanza Lopez , Javier Mas , Alexandre Serantes

In this article, we investigate the thermal equilibration of the holographic QCD model dual to the Einstein-Maxwell-Dilaton (EMD) gravity in the presence of an external electric field. The model captures the QCD features at finite…

高能物理 - 理论 · 物理学 2025-06-30 Sara Heshmatian , Fatemeh Ahmadi , Alexander Trounev

The dynamical properties of a model of dark energy in which two scalar fields are coupled by a non-canonical kinetic term are studied. We show that overall the addition of the coupling has only minor effects on the dynamics of the two-field…

宇宙学与河外天体物理 · 物理学 2014-11-20 Carsten van de Bruck , Joel M. Weller

Our work deals with the dynamical system analysis of quintessence dark energy scalar field model with exponential potential. A dynamical system analysis has been applied at the background level. Using suitable transformation of variables,…

广义相对论与量子宇宙学 · 物理学 2024-06-18 Soumya Chakraborty , Sudip Mishra , Subenoy Chakraborty

We overview the concept of dynamical phase transitions in isolated quantum systems quenched out of equilibrium. We focus on non-equilibrium transitions characterized by an order parameter, which features qualitatively distinct temporal…

统计力学 · 物理学 2022-10-25 Jamir Marino , Martin Eckstein , Matthew S. Foster , Ana Maria Rey

A new approach to the dynamics of relaxation and kinetics of thermalization in a scalar field theory is presented that incorporates the relevant time scales through the resummation of hard thermal loops. An alternative derivation of the…

高能物理 - 唯象学 · 物理学 2009-10-28 D. Boyanovsky , I. D. Lawrie , D. S. Lee

Symmetry restoration in a theory of a self-interacting charged scalar field at finite temperature and in the presence of an external magnetic field is examined. The effective potential is evaluated nonperturbatively in the context of the…

高能物理 - 唯象学 · 物理学 2011-11-01 D. C. Duarte , R. L. S. Farias , Rudnei O. Ramos

We explore the behaviors of the holographic superconductors at zero temperature for a charged scalar field coupled to a Maxwell field in higher-dimensional AdS soliton spacetime via analytical way. In the probe limit, we obtain the critical…

广义相对论与量子宇宙学 · 物理学 2015-06-04 Chong Oh Lee

We study the chiral condensate at finite temperature in AdS/QCD in a time-dependent background, in which the position of the black-hole horizon $z_h$ changes with time, producing an increasing or decreasing temperature. Conformal invariance…

高能物理 - 唯象学 · 物理学 2025-03-27 Floriana Giannuzzi , Stefano Nicotri

This paper extends the study of the quantum dissipative effects of a cosmological scalar field by taking into account the cosmic expansion and contraction. Cheung, Drewes, Kang and Kim calculated the effective action and quantum dissipative…

高能物理 - 理论 · 物理学 2024-07-18 Hui Xu , Lei Ming , Yeuk-Kwan E. Cheung

Non-equilibrium critical phenomena generally exist in many dynamic systems, like chemical reactions and some driven-dissipative {reactive} particle systems. Here, by using computer simulation and theoretical analysis, we demonstrate the…

软凝聚态物质 · 物理学 2021-05-26 Qun-Li Lei , Hao Hu , Ran Ni

Investigating the dynamics of gravitational systems, especially in the regime of quantum gravity, poses a problem of measuring time during the evolution. One of the approaches to this issue is using one of the internal degrees of freedom as…

广义相对论与量子宇宙学 · 物理学 2016-06-06 Anna Nakonieczna , Dong-han Yeom

Nucleation is an out-of-equilibrium process, which can be strongly affected by the presence of external fields. In this letter, we report a simple extension of classical nucleation theory to systems submitted to an homogeneous shear flow.…

统计力学 · 物理学 2013-06-17 Anatolii V. Mokshin , Bulat N. Galimzyanov , Jean-Louis Barrat

An alternative method of developing the theory of non-equilibrium two dimensional holographic superconductor is to start from the definition of a time dependent $AdS_3$ background. As originally proposed, many of these formulae were cast in…

高能物理 - 理论 · 物理学 2016-10-19 N. S. Mazhari , D. Momeni , R. Myrzakulov , H. Gholizade , M. Raza

We construct a series of new hyperbolic black hole solutions in Einstein-Scalar system and we apply holographic approach to investigate the spherical R\'{e}nyi entropy in various deformations of dual conformal field theories (CFTs).…

高能物理 - 理论 · 物理学 2017-07-14 Zhen Fang , Song He , Danning Li

The dissipative dynamics of strongly interacting systems are often characterised by the timescale set by the inverse temperature $\tau_P\sim\hbar/(k_BT)$. We show that near a class of strongly interacting quantum critical points that arise…

高能物理 - 理论 · 物理学 2021-06-30 Richard A. Davison , Simon A. Gentle , Blaise Goutéraux