2021/10/13 by D. J. Brown, Brown, D. J., M. D. Hoogerland +1
Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Atomic Physics (physics.atom-ph) #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Quantum Gases (cond-mat.quant-gas) #Quantum, superfluid, helium dynamics
paper · pdf · doi:10.48550/arxiv.2110.07094
openalex publication_date 2021/10/13 · openalex created_date 2022/07/25 · openalex updated_date 2026/07/28
An important component of the structure of the atom, the effects of\nspin-orbit coupling are present in many sub-fields of physics. Most of these\neffects are present continuously. We present a detailed study of the dynamics\nof changing the spin-orbit coupling in an ultra-cold Bose gas, coupling the\nmotion of the atoms to their spin. We find that the spin-orbit coupling greatly\nincreases the damping towards equilibrium. We interpret this damping as spin\ndrag, which is enhanced by spin-orbit coupling rate, scaled by a remarkable\nfactor of 8.9(6)~s. We also find that spin-orbit coupling lowers the final\ntemperature of the Bose gas after thermalization.\n