BCS STATES AS SQUEEZED FERMION-PAIR STATES

Authors
LIU WS LI XP
Citation
Ws. Liu et Xp. Li, BCS STATES AS SQUEEZED FERMION-PAIR STATES, EUROPEAN PHYSICAL JOURNAL D, 2(1), 1998, pp. 1-4
Citations number
18
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
EUROPEAN PHYSICAL JOURNAL D → ACNP
ISSN journal
14346060
Volume
2
Issue
1
Year of publication
1998
Pages
1 - 4
Database
ISI
SICI code
1434-6060(1998)2:1<1:BSASFS>2.0.ZU;2-T
Abstract
A new formulation of the Bogoliubov-Valatin transformation explicitly parameter-dependent and with no quasiparticle operators is derived and applied to a diagonalization of the BCS reduced Hamiltonian in the pa rticle space. It is shown that the eigenstates of this Hamiltonian are just the BCS states and are a kind of squeezed fermion-pair states as well.