Development of a Method for Determining the Heat Capacity of Graphene by the Hybrid Monte Carlo Method

被引：0

作者：

Mostovoy, S. D. ^{[1
,2
]}

Pavlovsky, O. V. ^{[1
,2
]}

机构：

[1] Moscow MV Lomonosov State Univ, Moscow 119991, Russia

[2] Kurchatov Inst, Natl Res Ctr, Moscow 123182, Russia

来源：

PHYSICS OF ATOMIC NUCLEI | 2022年 / 85卷 / SUPPL 2期

基金：

俄罗斯科学基金会;

关键词：

Monte Carlo method; Hubbard model; graphene; heat capacity;

D O I：

10.1134/S1063778822140101

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We search for the ways to improve the lattice implementation of the extended Hubbard model in order to compute quantum mechanical operators of increased complexity. The standard method does not make it possible to eliminate all the divergences in observables, which prevents obtaining a stable distribution over configurations in the Monte Carlo method. In a set of calculations, the positive effect of two approaches is demonstrated: an introduction of additional Hubbard fields and a selection of the parameterization of the Hubbard-Stratonovich transformation.

引用

页码：S73 / S79

页数：7

共 4 条

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