Quantum Phase Diffusions of a Spinor Condensate

2003/01/12 by S. Yi, Ö. E. Müstecaplıoğlu, Li You +1 · 4 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum, superfluid, helium dynamics #Strong Light-Matter Interactions #cond-mat #quant-ph

paper · pdf · doi:10.1103/physrevlett.90.140404

4 pages, 2 figures

arxiv created 2003/01/12 · openalex publication_date 2003/04/10 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We discuss the quantum phases and their diffusion in a spinor-1 atomic Bose-Einstein condensate. For ferromagnetic interactions, we obtain the exact ground state distribution of the phase fluctuations corresponding to the total atom number (N), the magnetization (M), and the alignment (or hypercharge) (Y) of the system. The mean-field ground state is shown to be stable against these fluctuations, which dynamically recover the two continuous symmetries associated with the conservation of N and M as in current experiments.

Citations

• Observation of Bose-Einstein Condensation in a Dilute Atomic Vapor
• Perubahan struktur dan ketidakseimbangan
• Measurement theory for spinor condensates

Cited by

• Tunneling of condensate magnetization in a double-well potential
• Critical fluctuations in a soliton formation of attractive Bose-Einstein condensates
• Mathematical Models and Numerical Methods for Spinor Bose-Einstein Condensates.
• Dynamical instability induced by the zero mode under symmetry breaking external perturbation