From Cooper Pairs to Composite Bosons: A Generalized RPA Analysis of Collective Excitations

Details From Cooper Pairs to Composite Bosons: A Generalized RPA Analysis of Collective Excitations From Cooper Pairs to Composite Bosons: A Generalized RPA Analysis of Collective Excitations

1993-10-11

arxiv.org/abs/cond-mat/9310021v1

Physics

Condensed Matter

20 pages RevTex, 7 figures on request

Scientific paper

10.1103/PhysRevB.49.6829

The evolution of the ground state and the excitation spectrum of the two and
three dimensional attractive Hubbard model is studied as the system evolves
from a Cooper pair regime for weak attraction to a composite boson regime for a
strong attraction.

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