Quantum Kinetic Theory for a Condensed Bosonic Gas

Details Quantum Kinetic Theory for a Condensed Bosonic Gas Quantum Kinetic Theory for a Condensed Bosonic Gas

1998-10-13

arxiv.org/abs/cond-mat/9810150v2

Physics

Condensed Matter

Statistical Mechanics

15 pages, no figures; reviewed version; to be published in PRA

Scientific paper

10.1103/PhysRevA.59.3878

We present a kinetic theory for Bose-Einstein condensation of a weakly interacting atomic gas in a trap. Starting from first principles, we establish a Markovian kinetic description for the evolution towards equilibrium. In particular, we obtain a set of self-consistent master equations for mean fields, normal densities, and anomalous fluctuations. These kinetic equations generalize the Gross-Pitaevskii mean-field equations, and merge them consistently with a quantum-Boltzmann equation approach.

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