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相关论文: Thermalization in External Magnetic Field

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We construct the thermodynamics of energy magnetization in the presence of gravitomagnetic field. We show that the free energy must be modified to account for the modification of the energy current operator in the presence of a confining…

介观与纳米尺度物理 · 物理学 2021-01-04 Yinhan Zhang , Yang Gao , Di Xiao

Understanding how the thermodynamic properties of a black hole are modified when probed by D-branes is an important problem in AdS/CFT. This work focuses on a recently proposed black hole/D3-brane system in AdS$_5\times$S$^5$, which is dual…

高能物理 - 理论 · 物理学 2023-12-21 Alejandro Cabo-Bizet , Marina David , Alfredo González Lezcano

Orbital magnetism is studied for graphene flakes with various shapes and edge configurations using the tight-binding approximation. In the low-temperature regime where the thermal energy is much smaller than to the energy level spacing, the…

介观与纳米尺度物理 · 物理学 2013-03-27 Yuya Ominato , Mikito Koshino

We compute the meson spectrum of an N=2 super Yang-Mills theory with fundamental matter from its dual string theory on AdS_5 x S_5 with a D7-brane probe. For scalar and vector mesons with arbitrary R-charge the spectrum is computed in…

高能物理 - 理论 · 物理学 2011-07-19 Martin Kruczenski , David Mateos , Robert C. Myers , David J. Winters

We study the thermal helicity, defined in arXiv:1211.3850, of a conformal field theory with anomalies in the context of AdS$_{2n+1}$/CFT$_{2n}$. To do so, we consider large charged rotating AdS black holes in the…

高能物理 - 理论 · 物理学 2015-06-17 Tatsuo Azeyanagi , R. Loganayagam , Gim Seng Ng , Maria J. Rodriguez

The dynamics of a probe brane in a given gravitational background is governed by the Dirac-Born-Infeld action. The corresponding open string metric arises naturally in studying the fluctuations on the probe. In Gauge-String duality, it is…

高能物理 - 理论 · 物理学 2016-03-23 Avik Banerjee , Arnab Kundu , Sandipan Kundu

The mechanism of rapid and selective heating of magnetic metal oxides under the magnetic field of microwaves which continues beyond the Curie temperature $ T_{c} $ is identified by using the Heisenberg model. Monte Carlo calculations based…

材料科学 · 物理学 2009-02-13 Motohiko Tanaka , Hirohiko Kono , Koji Maruyama

We perform a numerical study to recognize the difference between various massive potentials in the dRGT massive gravity on the holographic thermalization in the AdS and AdS Gauss-Bonnet gravities. The massive potential in $4+1$ dimensions…

高能物理 - 理论 · 物理学 2017-10-17 Ali Nemati , Shahrokh Parvizi

In this paper we study the propagation of entanglement entropy after a global instantaneous quench on the CFT boundary of AdS bulk. We consider the Gauss-Bonnet model as a higher curvature gravity model for which we correct the RT(HRT)…

高能物理 - 理论 · 物理学 2018-12-14 Hossein Ghaffarnejad , Emad Yaraie , Mohammad Farsam

We investigate full QCD with (2+1)-flavour of HISQ fermions at the physical point in the presence of uniform Abelian chromomagnetic background fields. Our focus is on the renormalized light and strange chiral condensate around the…

高能物理 - 格点 · 物理学 2024-07-11 Paolo Cea , Leonardo Cosmai

We consider thermal strongly-coupled N=2 SYM theory with fundamental matter at finite isospin chemical potential. Using gauge/gravity duality, i.e. a probe of two flavor D7-branes embedded in the AdS black hole background, we find a…

高能物理 - 理论 · 物理学 2009-10-16 Martin Ammon , Johanna Erdmenger , Matthias Kaminski , Patrick Kerner

A D3-brane probe in the context of AdS/CFT correspondence at finite temperature is considered. The supergravity predictions for the physical effective couplings of the world-volume gauge theory of the probe brane are compared to those…

高能物理 - 理论 · 物理学 2010-02-03 E. Kiritsis

We report observation of substantial thermal relaxation in single crystal of charge ordered system Pr$_{0.63}$Ca$_{0.37}$MnO$_3$ in an applied magnetic field of H = 8T. The relaxation is observed when the temperature is scanned in presence…

强关联电子 · 物理学 2009-10-31 A. K. Raychaudhuri , Ayan Guha , I. Das , R. Rawat , C. N. R. Rao

Using the AdS/CFT correspondence, we probe the scale-dependence of thermalization in strongly coupled field theories following a quench via saddlepoint calculations of 2-point functions, Wilson loops and entanglement entropy in $d=2,3,4$.…

We propose a new model of flavour chiral symmetry breaking in a (2+1)-dimensional defect gauge theory of strongly coupled fermions by introducing probe D5/anti-D5-flavour branes on the conifold. After working out the flavour brane…

高能物理 - 理论 · 物理学 2013-12-25 Veselin G. Filev , Matthias Ihl , Dimitrios Zoakos

We investigate the effect of a homogeneous magnetic field on the thermal deconfinement transition of QCD in the large $N_c$ limit. First we discuss how the critical temperature decreases due to the inclusion of $N_f \ll N_c$ flavors of…

高能物理 - 唯象学 · 物理学 2013-08-08 Eduardo S. Fraga , Jorge Noronha , Leticia F. Palhares

We consider the AdS/dS CFT correspondence and study the nature of the thermal bath of the de Sitter field theory using holography. Unlike the temperature of a thermal field theory in flat spacetime, the temperature of a superconformal field…

高能物理 - 理论 · 物理学 2017-08-09 Chong-Sun Chu , Dimitrios Giataganas

The changes in the cosmic microwave background (CMB) spectrum seen as an increase of temperature due to a strong magnetic field are determined and their influence on the polarization of the radiation is exhibited. The effect is due to the…

宇宙学与河外天体物理 · 物理学 2014-12-24 Zofia Bialynicka-Birula , Iwo Bialynicki-Birula

We study the 21-cm differential brightness temperature in the presence of primordial helical magnetic fields for redshift $z=10-30$. We argue that the $\alpha$-effect that sets in at earlier time can be helpful in lowering the gas…

宇宙学与河外天体物理 · 物理学 2020-06-25 Pravin Kumar Natwariya , Jitesh R. Bhatt

We propose an adiabatic magnetization process for cooling the Fermi electron gas to ultra-low temperatures as an alternative to the known adiabatic demagnetization mechanism. We show via a new adiabatic equation that at the constant density…

等离子体物理 · 物理学 2019-04-03 Nodar L. Tsintsadze , Levan N. Tsintsadze