Microscopic quantum dynamics approach to the dilute condensed Bose gas

2001/10/29 by Thorsten Koehler, Thorsten Köhler, K. Burnett +1 · 9 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum, superfluid, helium dynamics #Strong Light-Matter Interactions #cond-mat

paper · pdf · doi:10.1103/physreva.65.033601

published as Phys. Rev. A 65, 033601 (2002) · 8 pages, submitted to Phys. Rev. A

arxiv created 2001/10/29 · openalex publication_date 2002/02/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We derive quantum evolution equations for the dynamics of dilute condensed Bose gases. The approach contains, at different orders of approximation, for cases close to equilibrium, the Gross-Pitaevskii equation and the first-order Hartree-Fock-Bogoliubov theory. The proposed approach is also suited for the description of the dynamics of condensed gases that are far away from equilibrium. As an example the scattering of two Bose condensates is discussed.

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