Thouless theorem for one and two degrees of freedom

Revista Brasileira de Ensino de Física

卷:28

M.C. Nemes¹  C.H. d'Àvila Fonseca¹ 

[1] Universidade Federal de Minas Gerais;

关键词: quantum oscillators;    variables transformations;    bosonic systems;   

DOI  :  

来源: DOAJ

【 摘 要 】

We perform an accessible demonstration of Thouless theorem for systems of one and two degrees of freedom, using only elementary quantum mechanics. This theorem is specially useful to ¯nd the vacuum of a transformed set of bosonic operators. A further motivation comes from experiments involving few trapped ions or ¯elds in cavity quantum electrodynamics, usually modelled by few linearly interacting oscillators.

【 授权许可】

Unknown