具有非矩形几何结构的两能级晶格上最近邻之间的斥力的晶格流体的平衡性质

IF 0.9 4区物理与天体物理 Q4 PHYSICS, CONDENSED MATTER

Condensed Matter Physics Pub Date : 2022-03-26 DOI:10.5488/CMP.25.13501

Y. Groda

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引用次数: 0

摘要

研究了两能级平面三角形晶格上近邻斥力作用下晶格流体的平衡性质。将解析表达式得到的数值结果与蒙特卡罗模拟数据进行了比较。结果表明，先前提出的图解近似可以确定晶格流体在两能级晶格上最近邻之间的排斥力的平衡特性，其精度可与在整个热力学参数范围内使用蒙特卡罗方法对系统建模的精度相媲美。我们发现，与类似的单能级系统相比，晶格流体在近邻之间具有排斥力时经历了一阶相变。

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Equilibrium properties of the lattice fluid with the repulsion between the nearest neighbors on the two-level lattice with nonrectangular geometry

The equilibrium properties of the lattice fluid with the repulsion between the nearest neighbors on the two-level planar triangular lattice are investigated. The numerical results obtained from the analytical expressions are compared with the Monte Carlo simulation data. It is shown that the previously proposed diagrammatic approximation makes it possible to determine the equilibrium characteristics of the lattice fluid with the repulsion between the nearest neighbors on a two-level lattice with an accuracy comparable to the accuracy of modelling the system using the Monte Carlo method in the entire range of thermodynamic parameters. It was found that, in contrast to a similar one-level system, a lattice fluid with the repulsion between the nearest neighbors undergoes a first-order phase transition.

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来源期刊

Condensed Matter Physics 物理-物理：凝聚态物理

CiteScore

1.10

自引率

16.70%

发文量

审稿时长

1 months

期刊介绍： Condensed Matter Physics contains original and review articles in the field of statistical mechanics and thermodynamics of equilibrium and nonequilibrium processes, relativistic mechanics of interacting particle systems.The main attention is paid to physics of solid, liquid and amorphous systems, phase equilibria and phase transitions, thermal, structural, electric, magnetic and optical properties of condensed matter. Condensed Matter Physics is published quarterly.