Density waves in quasi-one-dimensional atomic gas mixture of boson and two-component fermion

Accession number;05A0202287
Title;Density waves in quasi-one-dimensional atomic gas mixture of boson and two-component fermion
Author; NAKANO E (Kyoto Univ., Kyoto, Jpn) YABU H (Tokyo Metropolitan Univ., Tokyo, Jpn)
Journal Title;YITP
Journal Code:L0911B
ISSN:
VOL.;NO.05-6;PAGE.13P(2005)
Figure&Table&Reference;FIG.6, REF.42
Pub. Country;Japan
Language;English
Abstract;By using the mean-field approximation, the density-wave structure is investigated in quasi-1d atomic mixture of 1-component bosons and 2-component fermions at zero temperature. The effective potential and the interaction energies are calculated, and it is found that the density-waves appear in the ground state. The density waves appear are in-phase or out-phase between the two components of the fermion depending on the fermion interatomic interaction. The periodic Bose-Einstein condensate, induced by the boson-fermion interatomic interaction, is shown to coexist with the in-phase density wave of fermions. In the out-phase case, however, only the uniform condensate appears. The phase diagram of the density-wave structure is obtained in the two-parameter plane connected with the two-type couplings.