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Here we consider a one-dimensional $q$-state Potts model with an external magnetic field and an anisotropic interaction that selects neighboring sites that are in the spin state 1. The present model exhibits an unusual behavior in the…

统计力学 · 物理学 2021-06-09 Yury Panov , Onofre Rojas

The transverse-field Ising model is widely studied as one of the simplest quantum spin systems. It is known that this model exhibits a phase transition at the critical inverse temperature $\beta_{\mathrm{c}}$, which is determined by the…

数学物理 · 物理学 2025-09-01 Yoshinori Kamijima , Akira Sakai

For ensembles of Hamiltonians that fall under the Dyson classification of random matrices with $\beta \in \{1,2,4\}$, the low-temperature mean entropy can be shown to vanish as $\langle S(T)\rangle\sim \kappa T^{\beta+1}$. A similar…

高能物理 - 理论 · 物理学 2021-06-30 Oliver Janssen , Mehrdad Mirbabayi

The seminal papers of Pickands [1,2] paved the way for a systematic study of high exceedance probabilities of both stationary and non-stationary Gaussian processes. Yet, in the vector-valued setting, due to the lack of key tools including…

概率论 · 数学 2019-11-18 Krzysztof Dȩbicki , Enkelejd Hashorva , Longmin Wang

Criticality of chiral phase transition at finite temperature is investigated in a soft-wall AdS/QCD model with $SU_L(N_f)\times SU_R(N_f)$ symmetry, especially for $N_f=2,3$ and $N_f=2+1$. It is shown that in quark mass plane($m_{u/d}-m_s$)…

高能物理 - 唯象学 · 物理学 2019-02-20 Jianwei Chen , Song He , Mei Huang , Danning Li

Taking axion inflation as an example, we estimate the maximal temperature ($T_{\rm max}^{ }$) that can be reached in the post-inflationary universe, as a function of the confinement scale of a non-Abelian dark sector ($\Lambda_{\rm IR}^{…

高能物理 - 唯象学 · 物理学 2023-06-02 H. Kolesova , M. Laine , S. Procacci

We study a one-dimensional spin-$1/2$ model with three-spin interactions and a transverse magnetic field $h$. The model has a $Z_2 \times Z_2$ symmetry, and a duality between $h$ and $1/h$. The self-dual point at $h=1$ is a quantum critical…

统计力学 · 物理学 2024-01-05 Adithi Udupa , Samudra Sur , Sourav Nandy , Arnab Sen , Diptiman Sen

We examine the thermal pairwise entanglement in a symmetric system of $n$ spins fully connected through anisotropic $XYZ$-type couplings embedded in a transverse magnetic field. We consider both the exact evaluation together with that…

量子物理 · 物理学 2015-05-28 Juan Mauricio Matera , Raul Rossignoli , Norma Canosa

Among the statistical mechanical frameworks able to describe systems in non-equilibrium steady states such as collisionless plasmas, self-gravitating systems and other complex systems, superstatistics have gained recent attention.…

统计力学 · 物理学 2026-04-21 Sergio Davis

We demonstrate the applicability of the $\epsilon$-convergence algorithm in extracting the critical temperatures and critical exponents of three-dimensional Ising models. We analyze the low temperature magnetization as well as high…

统计力学 · 物理学 2024-10-22 M V Vismaya , M V Sangaranarayanan

We study a multi-matrix model whose low temperature phase is a fuzzy sphere that undergoes an evaporation transition as the temperature is increased. We investigate finite size scaling of the system as the limiting temperature of stability…

高能物理 - 理论 · 物理学 2015-06-17 Denjoe O'Connor , Brian P. Dolan , Martin Vachovski

Thermodynamic properties of the SU($n$) Heisenberg model in one dimension is studied by means of high-temperature expansion for arbitrary $n$. The specific heat up to $O[(\beta J)^{23}]$ and the correlation function up to $O[(\beta…

强关联电子 · 物理学 2009-11-07 Noboru Fukushima , Yoshio Kuramoto

We investigate a family of multiple-stable processes that may exhibit either long-range or short-range dependence, depending on the parameters. There are two parameters for the processes, the memory parameter $\beta\in(0,1)$ and the…

概率论 · 数学 2023-02-10 Shuyang Bai , Yizao Wang

We study the effect of hotter or colder particles on the evolution of the chiral magnetic field in the early universe. We are interested in the temperature dependent term in the chiral vortical effect. There are no changes in the magnetic…

高能物理 - 唯象学 · 物理学 2017-10-10 Tamal K. Mukherjee , Soma Sanyal

We nonperturbatively investigate a fermion spectrum at finite temperature in a chiral invariant linear sigma model. Coupled Schwinger-Dyson equations for fermion and boson are developed in the real time formalism and solved numerically.…

高能物理 - 唯象学 · 物理学 2008-11-26 Masayasu Harada , Yukio Nemoto

We study the decoherence and thermalization dynamics of a nanoscale system coupled nonperturbatively to a fully quantum-mechanical bath. The system is prepared out of equilibrium in a pure state of the complete system. We propose a random…

统计力学 · 物理学 2013-09-30 S. Genway , A. F. Ho , D. K. K. Lee

Let $\phi:X\to \mathbb R$ be a continuous potential associated with a symbolic dynamical system $T:X\to X$ over a finite alphabet. Introducing a parameter $\beta>0$ (interpreted as the inverse temperature) we study the regularity of the…

动力系统 · 数学 2020-09-08 Tamara Kucherenko , Anthony Quas , Christian Wolf

There exist several prescriptions for identifying the notion of temperature in special relativity. We argue that the inverse temperature 4-vector $\bf \beta$ is the only viable option from the laws of thermodynamics, and $\bf \beta$ is a…

广义相对论与量子宇宙学 · 物理学 2009-11-12 Zhong Chao Wu

We study the thermodynamic properties of matter at vanishing temperature for non-extreme values of the isospin chemical potential and of the strange quark chemical potential. From the leading order pressure obtained by maximizing the static…

高能物理 - 唯象学 · 物理学 2016-04-06 Stefano Carignano , Andrea Mammarella , Massimo Mannarelli

The nonequilibrium relaxation (NER) method, which has been used to investigate equilibrium systems via their nonequilibrium behavior, has been widely applied to various models to estimate critical temperatures and critical exponents.…

统计力学 · 物理学 2024-10-03 Yuma Osada , Yukiyasu Ozeki