2D Bose condensation and Goldstone singularities

被引：2

作者：

Hnatic, M. ^{[1
,2
,3
]}

Kalagov, G. A. ^{[1
,4
]}

Nalimov, M. Yu ^{[4
]}

机构：

[1] Safarik Univ, Fac Sci, Dept Theoret Phys & Astrophys, Pk Angelinum 9, Kosice 04154, Slovakia

[2] Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, Dubna 141980, Moscow Region, Russia

[3] Inst Expt Phys SAS, Watsonova 47, Kosice 04001, Slovakia

[4] St Petersburg State Univ, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia

来源：

NUCLEAR PHYSICS B | 2018年 / 936卷

关键词：

PERTURBATION-THEORY; CRITICAL EXPONENTS; FIELD-THEORY; EINSTEIN CONDENSATION; MODEL; ABSENCE; FERROMAGNETISM; TRANSITION; EQUATION; SYSTEMS;

D O I：

10.1016/j.nuclphysb.2018.09.022

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The present paper is dedicated to the investigation of a two-dimensional Bose system with the density-density type interparticle interaction. We showed the possibility of a finite temperature phase transition and investigated the Goldstone singularities for both homogeneous and vortex ground states. The critical exponents of the O (n > 1) symmetric Emptyset(4) model were computed within the epsilon-expansion for epsilon = 2. (C) 2018 The Author(s). Published by Elsevier B.V.

引用

页码：206 / 214

页数：9

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