Classical and quantum energies for interacting magnetic systems

被引：0

作者：

Amour, L. ^{[1
]}

Nourrigat, J. ^{[1
]}

机构：

[1] Univ Reims, Lab Math Reims, UMR CNRS 9008, Moulin Housse,BP 1039, F-51687 Reims 2, France

来源：

REVIEWS IN MATHEMATICAL PHYSICS | 2022年 / 34卷 / 06期

关键词：

Interacting spins; ground state energy; interacting magnets; classical energy; higher spins; quantum electrodynamics; quantum radiative corrections; multiplicity of the ground states; GROUND-STATES; EXISTENCE; NUMBER; MODELS;

D O I：

10.1142/S0129055X22500179

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The purpose of this paper is to give different interpretations of the first non-vanishing term (quadratic) of the ground state asymptotic expansion for a spin system in quantum electrodynamics, as the spin magnetic moments go to 0. One of the interpretations makes a direct link with some classical physics laws. A central role is played by an operator A(M) acting only in the finite-dimensional spin state space and making the connections with the different interpretations, and also being in close relation with the multiplicity of the ground state.

引用

页数：17

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