方形晶格上半硬核玻色子模型中局部相关性对相态的影响

IF 0.48 Q4 Physics and Astronomy

Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-10-14 DOI:10.1134/S1062873824707682

V. A. Ulitko, V. V. Konev, A. A. Chikov, Yu. D. Panov

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引用次数: 0

摘要

作者考虑了一个正方形晶格上的带电半硬核玻色子模型，每个位点的可能占据数\({{n}_{i}} = 0,1,2~\)。通过量子蒙特卡洛计算得到了该模型的温度相图，并研究了局部电荷相关性的影响。结果表明，局部电荷相关性增加了量子波动在相态形成中的作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Effect of Local Correlations on Phase States in a Model of Semi-Hard-Core Bosons on a Square Lattice

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Effect of Local Correlations on Phase States in a Model of Semi-Hard-Core Bosons on a Square Lattice

The authors consider a model of charged semi-hard-core bosons on a square lattice with possible occupation number \({{n}_{i}} = 0,1,2~\) at each site. Temperature phase diagrams of the model are obtained using quantum Monte Carlo calculations, and the effect of local charge correlations is studied. It is shown that local charge correlations increase the role of quantum fluctuations in the formation of phase states.

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来源期刊

Bulletin of the Russian Academy of Sciences: Physics Physics and Astronomy-Physics and Astronomy (all)

CiteScore

0.90

自引率

0.00%

发文量

251

期刊介绍： Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.