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We discuss the nature of phase transitions in self-gravitating systems both in the microcanonical and in the canonical ensemble. We avoid the divergence of the gravitational potential at short distances by considering the case of…

统计力学 · 物理学 2009-11-07 P. H. Chavanis

In the present study, a consistent and conservative Phase-Field model is developed to study thermo-gas-liquid-solid flows with liquid-solid phase change. The proposed model is derived with the help of the consistency conditions and exactly…

计算物理 · 物理学 2021-11-16 Ziyang Huang , Guang Lin , Arezoo M. Ardekani

In the present work, the critical temperature, critical pressure and critical density, known as the critical parameters related to the liquid-gas phase transition are calculated for 34 relativistic mean-field models, which were shown to…

核理论 · 物理学 2017-07-05 O. Lourenço , M. Dutra , D. P. Menezes

The thermodynamic problem of a gas of static quarks carrying U(N) charges and interacting with each other via U(N) electric gauge fields is formulated and solved in the large N limit. In a lattice theory, the solution can be found in any…

高能物理 - 唯象学 · 物理学 2007-05-23 L. D. Paniak , G. W. Semenoff

The study of liquid-gas phase transition in heavy ion collisions has generated a lot of interest amongst the nuclear physicists in the recent years. In heavy ion collisions, there is no direct way of measuring the state variables like…

核理论 · 物理学 2021-01-18 G. Chaudhuri , S. Mallik , P. Das , S. Das Gupta

The nuclear liquid-gas transition from a gas of hadrons to a nuclear phase cannot be determined numerically from conventional lattice QCD due to the severe sign problem at large values of the baryon chemical potential. In the strong…

高能物理 - 格点 · 物理学 2023-06-07 Jangho Kim , Pratitee Pattanaik , Wolfgang Unger

We revisit the associating lattice gas~(ALG) introduced by Henriques \textit{et al.} [PRE 71, 031504 (2005)] in its symmetric version. In this model, defined on the triangular lattice, interaction between molecules occupying…

统计力学 · 物理学 2021-12-16 Ingrid Ibagon , A. P. Furlan , T. J. Oliveira , Ronald Dickman

A survey is presented summarizing the empirical evidence for and interpretations of a first-order liquid-gas phase transition in nuclear matter. Earlier developments and the present state of knowledge about the extraction of the critical…

核理论 · 物理学 2026-03-17 Norbert Kaiser , Wolfram Weise

We consider pairing in a three-component gas of degenerate fermions. In particular, we solve the finite temperature mean-field theory of an interacting gas for a system where both interaction strengths and fermion masses can be unequal. At…

超导电性 · 物理学 2009-11-11 T. Paananen , J. -P. Martikainen , P. Torma

A two-components isospin lattice gas model has been employed to study the liquid-gas phase transition for asymmetric nuclear matter. An additional degree of freedom, namely, the asymmetry parameter alpha has been considered carefully for…

核理论 · 物理学 2008-11-26 Wei Liang Qian , Ru-Keng Su

Recent work has studied fermion transport through a finite one-dimensional lattice of quantum dots, with localized particle loss from the central lattice site. The dots at each end of the lattice are connected to macroscopic leads,…

量子气体 · 物理学 2024-10-25 J. R. Anglin

We construct a phase field model including hydrodynamics and elasticity in one-component systems. It can be used to investigate solid-liquid and liquid-liquid phase transitions. Upon first-order phase transition, a velocity field is induced…

软凝聚态物质 · 物理学 2015-03-13 Kyohei Takae , Akira Onuki

We theoretically investigate thermodynamic properties in a quasi-one-dimensional single-component dipolar Fermi gas at finite temperatures. The self-bound fermionic droplet can be achieved by exchange correlations with the long-range…

量子气体 · 物理学 2025-12-11 Lanxuan Gao , Koki Takayama , Hiroyuki Tajima , Takahiro M. Doi , Haozhao Liang

Ultracold Fermi gases trapped in honeycomb optical lattices provide an intriguing scenario, where relativistic quantum electrodynamics can be tested. Here, we generalize this system to non-Abelian quantum electrodynamics, where massless…

介观与纳米尺度物理 · 物理学 2015-05-14 A. Bermudez , N. Goldman , A. Kubasiak , M. Lewenstein , M. A. Martin-Delgado

The phase transitions of liquid Helium 3 are described by truncations of an exact nonperturbative renormalization group equation. The location of the first order transition lines and the jump in the order parameter are computed…

统计力学 · 物理学 2009-10-31 Markus Kindermann , Christof Wetterich

In this paper, the sixth in series, we continue our analysis of the interplay between non-Fermi liquid and pairing in the effective low-energy model of fermions with singular dynamical interaction $V(\Omega_m) = {\bar…

超导电性 · 物理学 2021-11-03 Shang-Shun Zhang , Yi-Ming Wu , Artem Abanov , Andrey V. Chubukov

A path integration formulation for the finite density and temperature problems is shown to be consistent with the thermodynamics using an 8 component ``real'' representation for the fermion fields by applying it to a free fermion system. A…

高能物理 - 理论 · 物理学 2007-05-23 S. Ying

Liquid-gas phase transition in statistical mechanics is a long-standing dilemma not yet well explained. In this paper we propose a novel approach to this dilemma, by: 1). Putting forth a new space homogeneity assumption. 2). Giving a new…

统计力学 · 物理学 2007-05-23 Yuan-Xing Gui

Dilute gases of 2-component fermions are of great interest in atomic and nuclear physics. When interactions are strong enough so that a bound state is at threshold, universal behavior is expected. Lattice field theory provides a first…

统计力学 · 物理学 2016-08-31 Matthew Wingate