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.

UR - http://www.scopus.com/inward/record.url?scp=85037212900&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85037212900&partnerID=8YFLogxK

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 -