Three fluid hydrodynamics of spin-1 Bose-Einstein condensates
arXiv:1112.3220 · doi:10.1103/PhysRevA.85.053603
Abstract
We study excitations of the spin-1 Bose gas at finite temperatures and in the presence of a not so strong magnetic field, or equivalently, when the gas sample is partially polarized. Motivated by the success of two-fluid hydrodynamics of scalar superfluids we develop a three-fluid hydrodynamic description to treat the low frequency and long wavelength excitations of the spin-1 Bose gas. We derive the coupled linear hydrodynamic equations of the three sounds and evaluate them numerically in a self-consistent mean field approximation valid for the dilute gas at the intermediate and critical temperature regions. In this latter region we identify the critical mode.
References in corpus (5)
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- Hydrodynamic equation of a spinor dipolar Bose-Einstein condensate
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Cited by in corpus (7)
- Quantum hydrodynamics of the spinor Bose-Einstein condensate at non-zero temperatures
- Quantum hydrodynamic theory of quantum fluctuations in dipolar Bose-Einstein condensate
- Exact analytical soliton solutions in dipolar BEC
- Hydrodynamics of the atomic Bose-Einstein condensate beyond the mean-field approximation: a mini-review
- Many-particle Quantum Hydrodynamics of Spin-1 Bose-Einstein Condensates
- Critical velocity of antiferromagnetic spin-1 Bose-Einstein condensates at finite temperature
- Hydrodynamic model of skyrmions and vorticities in the spin-1 Bose-Einstein condensate in ferromagnetic phase at finite temperatures