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The confinement-deconfinement phase transition is explored by lattice numerical simulations in non-compact (2+1)-dimensional quantum electrodynamics with massive fermions at finite temperature. The existence of two phases, one with and the…

高能物理 - 格点 · 物理学 2008-12-18 Roberto Fiore , Pietro Giudice , Alessandro Papa

We discuss properties of Quantum Chromodynamics at finite temperature obtained by means of lattice simulations with overlap fermions. This fermion discretization preserves chiral symmetry even at finite lattice spacing. We present details…

高能物理 - 格点 · 物理学 2024-01-08 Z. Fodor , A. Yu. Kotov , K. Szabo

Investigating finite temperature effects on quantum phases is key to their experimental realization. Finite temperature, and the interplay between quantum and thermal fluctuations can undermine properties and/or key features of quantum…

Lattice QCD simulations at finite temperature have shown that the chiral phase transition in the chiral limit and the deconfinement phase transition in the quenched limit are continuously connected. I emphasize the nontriviality of this…

高能物理 - 唯象学 · 物理学 2017-08-23 Y. Hatta

We suggest that if a localized phase at nonzero temperature $T>0$ exists for strongly disordered and weakly interacting electrons, as recently argued, it will also occur when both disorder and interactions are strong and $T$ is very high.…

强关联电子 · 物理学 2009-11-11 Vadim Oganesyan , David A. Huse

We study the non-equilibrium dynamics of two tunnel-coupled one-dimensional quasicondensates following a quench of the coupling strength from zero to a fixed finite value. More specifically, starting from two independent quasicondensates in…

量子气体 · 物理学 2022-08-29 F. A. Bayocboc , M. J. Davis , K. V. Kheruntsyan

The temperature dependance of the action in the thin-wall and thick-wall limits is obtained analytically for the $\phi^6$ scalar potential. The nature of the phase transition is investigated from the quantum tunnelling regime at low…

高能物理 - 理论 · 物理学 2009-11-13 Hatem Widyan

We study the finite temperature nature of a quantum phase transition between an Abelian and a non-Abelian topological phase in an exactly solvable model of a chiral spin liquid. By virtue of the exact solvability, this model can serve as a…

强关联电子 · 物理学 2010-02-23 Suk Bum Chung , Hong Yao , Taylor L. Hughes , Eun-Ah Kim

We study a three-dimensional plaquette spin model whose low temperature dynamics is glassy, due to localised defects and effective kinetic constraints. While the thermodynamics of this system is smooth at all temperatures, we show that…

统计力学 · 物理学 2016-02-10 Robert L. Jack , Juan P. Garrahan

Experimental nuclear level densities at excitation energies below the neutron threshold follow closely a constant-temperature shape. This dependence is unexpected and poorly understood. In this work, a fundamental explanation of the…

核理论 · 物理学 2015-10-06 L. G. Moretto , A. C. Larsen , F. Giacoppo , M. Guttormsen , S. Siem , A. V. Voinov

The thermodynamical model of viscoelastic deformable solids at finite strains with Kelvin-Voigt rheology with a higher-order viscosity (using the concept of multipolar materials) is formulated in a fully Eulerian way in rates. Assumptions…

偏微分方程分析 · 数学 2025-02-05 Tomáš Roubíček

Quasistatic evolutions of critical points of time-dependent energies exhibit piecewise smooth behavior, making them useful for modeling continuum mechanics phenomena like elastic-plasticity and fracture. Traditionally, such evolutions have…

最优化与控制 · 数学 2026-01-09 Stefano Almi , Massimo Fornasier , Jona Klemenc , Alessandro Scagliotti

Our quasi-particle model for deconfined matter near T_c is reviewed. The extrapolation of lattice QCD data to a finite baryo-chemical potential is discussed. Determined by the chiral transition temperature T_c, the resulting equation of…

高能物理 - 唯象学 · 物理学 2017-08-23 B. Kampfer , A. Peshier , G. Soff

As new kinds of stabilizer code models, fracton models have been promising in realizing quantum memory or quantum hard drives. However, it has been shown that the fracton topological order of 3D fracton models occurs only at zero…

强关联电子 · 物理学 2022-07-15 Xiaoyang Shen , Zhengzhi Wu , Linhao Li , Zhehan Qin , Hong Yao

We study the chiral phase transition at finite temperature in the linear sigma model by employing a self-consistent Hartree approximation. This approximation is introduced by imposing self-consistency conditions on the effective meson mass…

核理论 · 物理学 2009-10-30 Heui-Seol Roh , T. Matsui

Finite temperature transition in lattice QCD with degenerate Wilson quarks is investigated on an $N_t=4$ lattice, using a renormalization group improved gauge action. We find the following for the $N_F=2$ case: 1) The transition is smooth…

高能物理 - 格点 · 物理学 2016-09-01 Y. Iwasaki , K. Kanaya , S. Kaya , S. Sakai , T. Yoshie

The decay rate for a particle in a metastable cubic potential is investigated in the quantum regime by the Euclidean path integral method in semiclassical approximation. The imaginary time formalism allows one to monitor the system as a…

统计力学 · 物理学 2008-04-22 Marco Zoli

The real-time dynamics of chiral phase transition is investigated in a two-flavor ($N_f=2$) soft-wall AdS/QCD model. To understand the dynamics of thermalization, we quench the system from initial states deviating from the equilibrium…

高能物理 - 唯象学 · 物理学 2023-04-19 Xuanmin Cao , Jingyi Chao , Hui Liu , Danning Li

The microscopic model of semi-crystalline polymer in high-elastic state is proposed. The model is based on the assumption that, below the melting temperature, the semi-crystalline polymer comprises crystal nuclei connected by stretched…

软凝聚态物质 · 物理学 2013-06-20 V. V. Atrazhev , S. F. Burlatsky , D. V. Dmitriev , V. I. Sultanov

The simplest statistical-mechanical model of crystalline formation (or alloy formation) that includes electronic degrees of freedom is solved exactly in the limit of large spatial dimensions and infinite interaction strength. The solutions…

强关联电子 · 物理学 2009-10-31 J. K. Freericks , Ch. Gruber , N. Macris