TY - JOUR
T1 - Dimensional and temperature crossover in trapped Bose gases
AU - Al Khawaja, U.
AU - Proukakis, N. P.
AU - Andersen, J. O.
AU - Romans, M. W.J.
AU - Stoof, H. T.C.
PY - 2003
Y1 - 2003
N2 - We investigate the long-range phase coherence of homogeneous and trapped Bose gases as a function of the geometry of the trap, the temperature, and the mean-field interactions in the weakly interacting limit. We explicitly take into account the (quasi)condensate depletion due to quantum and thermal fluctuations, i.e., we include the effects of both phase and density fluctuations. In particular, we determine the phase diagram of the gas by calculating the off-diagonal one-particle density matrix and discuss the various crossovers that occur in this phase diagram and the feasibility of their experimental observation in trapped Bose gases.
AB - We investigate the long-range phase coherence of homogeneous and trapped Bose gases as a function of the geometry of the trap, the temperature, and the mean-field interactions in the weakly interacting limit. We explicitly take into account the (quasi)condensate depletion due to quantum and thermal fluctuations, i.e., we include the effects of both phase and density fluctuations. In particular, we determine the phase diagram of the gas by calculating the off-diagonal one-particle density matrix and discuss the various crossovers that occur in this phase diagram and the feasibility of their experimental observation in trapped Bose gases.
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U2 - 10.1103/PhysRevA.68.043603
DO - 10.1103/PhysRevA.68.043603
M3 - Article
AN - SCOPUS:85037212900
SN - 1050-2947
VL - 68
SP - 9
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 4
ER -