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
收藏
页码：206 / 214
页数：9
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