Spontaneous symmetry restoration in a field theory at finite chemical potential in a toroidal topology

Linhares C.A.; Malbouisson A.P.C.; Malbouisson J.M.C.Roditi I.

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Spontaneous symmetry restoration in a field theory at finite chemical potential in a toroidal topology

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摘要

We consider the massive vector N-component (λφ4) D theory defined on a Euclidean space with a toroidal topology. Using recently developed methods to perform a compactification of a d-dimensional subspace at finite chemical potential, we treat jointly the effects of temperature and spatial boundaries, setting forth grounds for an analysis of spontaneous symmetry restoration driven by temperature and spatial boundaries, as a function of the chemical potential. We restrict ourselves to d=2, which corresponds to the heated system confined between two parallel planes (separation L) in dimensions D=3 and D=4. We present results, in the large-N limit, which exhibit how finite size and chemical potential affect spontaneous symmetry restoration.

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《Physical review, D. Particles, fields, gravitation, and cosmology》 |2012年第2期|105022-1-105022-6|共6页
作者
Linhares C.A.; Malbouisson A.P.C.; Malbouisson J.M.C.Roditi I.;
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Instituto de Física, Universidade Do Estado Do Rio de Janeiro, 20559-900 Rio de Janeiro, RJ, Brazil;

Centro Brasileiro de Pesquisas Físicas/MCT, 22290-180 Rio de Janeiro, RJ, Brazil;

Instituto de Física, Universidade Federal da Bahia, 40210-340 Salvador, Bahia, Brazil;

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中图分类粒子物理学;
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Spontaneous symmetry restoration in a field theory at finite chemical potential in a toroidal topology

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