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Paper Details

An Evaluation of Collective Mode of One-dimensional Fermi Gas.

Shrawan Kumar* and L.K. Mishra

Journal Title:Journal of Chemical, Biological and physical sciences

Collective mode of one- dimensional Fermi gas has been evaluated over the whole coupling regime from weak coupling (high density) to strong coupling (low density).The evaluation has been performed using theoretical model of Alam and Schuck taking attractive ? interaction potential under RPA approximation at zero temperature. We observe that in the weak-coupling limit particle-hole RPA approaches to low momenta and the collective mode in the strong coupling limit reproduces the Bogoliubov mode for the weakly interacting bosons. Our theoretically evaluated results are in good agreement with other theoretical workers.