TY - JOUR
T1 - Quasiparticle spectrum and dynamical stability of an atomic Bose-Einstein condensate coupled to a degenerate Fermi gas
AU - Search, C. P.
AU - Pu, H.
AU - Zhang, W.
AU - Meystre, P.
PY - 2002/6
Y1 - 2002/6
N2 - The quasiparticle excitations and dynamical stability of an atomic Bose-Einstein condensate (BEC), coupled to a quantum degenerate Fermi gas of atoms at zero temperature, were discussed. The quasiparticle excitations of the Bose-Einstein condensate were found to exhibit a dynamical instability due to a resonant exchange of energy and momentum with quasiparticle excitations of the Fermi gas. The analysis showed that the energy gap in the quasiparticle spectrum for the superfluid state stabilized the low-energy excitations of the condensates.
AB - The quasiparticle excitations and dynamical stability of an atomic Bose-Einstein condensate (BEC), coupled to a quantum degenerate Fermi gas of atoms at zero temperature, were discussed. The quasiparticle excitations of the Bose-Einstein condensate were found to exhibit a dynamical instability due to a resonant exchange of energy and momentum with quasiparticle excitations of the Fermi gas. The analysis showed that the energy gap in the quasiparticle spectrum for the superfluid state stabilized the low-energy excitations of the condensates.
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M3 - Article
AN - SCOPUS:0036600274
SN - 1050-2947
VL - 65
SP - 636151
EP - 6361512
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 6 A
M1 - 063615
ER -