Thermalization in a Spin-Orbit coupled Bose gas by enhanced spin Coulomb drag
Abstract
An important component of the structure of the atom, the effects of spin-orbit coupling are present in many sub-fields of physics. Most of these effects are present continuously. We present a detailed study of the dynamics of changing the spin-orbit coupling in an ultra-cold Bose gas, coupling the motion of the atoms to their spin. We find that the spin-orbit coupling greatly increases the damping towards equilibrium. We interpret this damping as spin drag, which is enhanced by spin-orbit coupling rate, scaled by a remarkable factor of $8.9(6)$~s. We also find that spin-orbit coupling lowers the final temperature of the Bose gas after thermalization.
- Publication:
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arXiv e-prints
- Pub Date:
- October 2021
- DOI:
- 10.48550/arXiv.2110.07094
- arXiv:
- arXiv:2110.07094
- Bibcode:
- 2021arXiv211007094B
- Keywords:
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- Condensed Matter - Quantum Gases;
- Physics - Atomic Physics