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BCS thermal vacuum of fermionic superfluids and its perturbation theory

The thermal field theory is applied to fermionic superfluids by doubling the degrees of freedom of the BCS theory. We construct the two-mode states and the corresponding Bogoliubov transformation to obtain the BCS thermal vacuum. The expectation values with respect to the BCS thermal vacuum produce...

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Detalles Bibliográficos
Autores principales: Hou, Xu-Yang, Huang, Ziwen, Guo, Hao, He, Yan, Chien, Chih-Chun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6086907/
https://www.ncbi.nlm.nih.gov/pubmed/30097620
http://dx.doi.org/10.1038/s41598-018-30438-1