Competition between Bose Einstein Condensation and spin dynamics
arXiv:1607.02406 · doi:10.1103/PhysRevLett.117.185302
Abstract
We study the impact of spin-exchange collisions on the dynamics of Bose-Einstein condensation, by rapidly cooling a chromium multi-component Bose gas. Despite relatively strong spin-dependent interactions, the critical temperature for Bose-Einstein condensation is reached before the spin-degrees of freedom fully thermalize. The increase in density due to Bose-Einstein condensation then triggers spin dynamics, hampering the formation of condensates in spin excited states. Small metastable spinor condensates are nevertheless produced, and manifest strong spin fluctuations.
5 pages, 4 figures
References in corpus (8)
- Bose-Einstein condensation of chromium
- Bose-Einstein Condensation of Erbium
- Quantum degenerate dipolar Fermi gas
- Critical Dynamics of Spontaneous Symmetry Breaking in a Homogeneous Bose gas
- Emergence of coherence in a uniform quasi-two-dimensional Bose gas
- All-Optical Production of Chromium Bose-Einstein Condensates
- A chromium dipolar Fermi sea
- Can a Bose gas be saturated?
Cited by in corpus (5)
- Dipolar physics: A review of experiments with magnetic quantum gases
- Variational Bethe Ansatz approach for dipolar one-dimensional bosons
- Cooling All External Degrees of Freedom of Optically Trapped Chromium Atoms Using Gray Molasses
- Spin distillation cooling of ultracold Bose gases
- Thermal effects on the spin domain phases of high spin-f Bose-Einstein condensates with rotational symmetries