Stability of Fock states in a two-component Bose-Einstein condensate with a regular classical counterpart

2008/05/30 by Wen-ge Wang, Jie Liu, Baowen Li · 4 citations
Physics and Astronomy · #Bose–Einstein condensate #Cold Atom Physics and Bose-Einstein Condensates #Component (thermodynamics) #Computer science #Fock space #Fock state #Mathematical physics #Physics #Quantum mechanics #Quantum, superfluid, helium dynamics #Stability (learning theory) #Strong Light-Matter Interactions #quant-ph

paper · pdf · doi:10.1103/physreve.77.056218

published in Physical Review E 77(5), 056218 (American Physical Society) · 8 pages and 8 figures

arxiv created 2008/05/30 · openalex publication_date 2008/05/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We study the stability of a two-component Bose-Einstein condensate (BEC) in the parameter regime in which its classical counterpart has regular motion. The stability is characterized by the fidelity for both the same and different initial states. We study as initial states the Fock states with definite numbers of atoms in each component of the BEC. It is found that for some initial times the two Fock states with all the atoms in the same component of the BEC are more stable than Fock states with atoms distributed in the two components. An experimental scheme is discussed, in which the fidelity can be measured in a direct way.

Citations

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