Critical behavior of isotropic systems with strong dipole-dipole interaction: Three-loop study

被引：5
|
作者：
Kudlis, A. [1 ]
Pikelner, A. [2 ]
机构：
[1] ITMO Univ, Fac Phys, Kronverkskiy Prospekt 49, St Petersburg 197101, Russia
[2] Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, 6 Joliot Curie, Dubna 141980, Russia
来源：
NUCLEAR PHYSICS B | 2022年 / 985卷
基金：
俄罗斯科学基金会;
关键词：
N-VECTOR MODEL; CRITICAL EXPONENTS; RENORMALIZATION-GROUP; MASSLESS PROPAGATORS; EPSILON-EXPANSION; CRITICAL INDEXES; DIMENSIONS; LOOP;
D O I：
10.1016/j.nuclphysb.2022.115990
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：
We analyze the critical behavior of isotropic systems with dipole-dipole interaction by renormalization-group methods in fixed space-time dimensions. Working in three-dimensional theory we analytically find three-loop expressions for critical exponents in the limit of dominating dipole-dipole forces. Resummation of the series obtained provides numerical values close to O(3)-theory predictions, justifying the applicabil-ity of such a simplified model to systems with strong dipole-dipole interaction.(c) 2022 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.
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页数：16
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