TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.8.2.029
TI  - Dynamics of hot Bose-Einstein condensates: stochastic Ehrenfest relations for number and energy damping
PY  - 2020/02/18
UR  - https://www.scipost.org/SciPostPhys.8.2.029
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 8
IS  - 2
SP  - 029
A1  - McDonald, Rob G.
AU  - Barnett, Peter S.
AU  - Atayee, Fradom
AU  - Bradley, Ashton
AB  - Describing partially-condensed Bose gases poses a long-standing theoretical challenge. We present exact stochastic Ehrenfest relations for the stochastic projected Gross-Pitaevskii equation, including both number and energy damping mechanisms, and all projector terms that arise from the energy cutoff separating system from reservoir. We test the theory by applying it to the centre of mass fluctuations of a harmonically trapped prolate system, finding close agreement between c-field simulations and analytical results. The formalism lays the foundation to analytically explore experimentally accessible hot Bose-Einstein condensates.
ER  -

@Article{10.21468/SciPostPhys.8.2.029,
	title={{Dynamics of hot Bose-Einstein condensates: stochastic Ehrenfest relations for number and energy damping}},
	author={Rob G. McDonald and Peter S. Barnett and Fradom Atayee and Ashton S. Bradley},
	journal={SciPost Phys.},
	volume={8},
	pages={029},
	year={2020},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.8.2.029},
	url={https://scipost.org/10.21468/SciPostPhys.8.2.029},
}