Physics – Condensed Matter
Scientific paper
2002-02-26
Physics
Condensed Matter
28 pages, 13 figures, submitted to Phys. Rev. A
Scientific paper
10.1103/PhysRevA.66.013618
We perform Random Phase Approximation (RPA) study of collective excitations in the bose-fermi mixed degenerate gas of Alkali-metal atoms at T=0. The calculation is done by diagonalization in a model space composed of particle-hole type excitations from the ground state, the latter being obtained from the coupled Gross-Pitaevskii and Thomas-Fermi equations. We investigate strength distributions for different combinations of bose and fermi multipole ($L$) operators with $L=0,1,2,3$. Transition densities and dynamical structure factors are calculated for collective excitations. Comparison with the sum rule prediction for the collective frequency is given. Time dependent behavior of the system after an external impulse is studied.
Miyakawa Takahiko
Sogo Takaaki
Suzuki Toshiya
Yabu Hiroyuki
No associations
LandOfFree
Random-phase approximation study of collective excitations in the Bose-Fermi mixed condensate of alkali-metal gases does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Random-phase approximation study of collective excitations in the Bose-Fermi mixed condensate of alkali-metal gases, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Random-phase approximation study of collective excitations in the Bose-Fermi mixed condensate of alkali-metal gases will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-667819