Stochastic gross-pitaevskii equation for the dynamical thermalization of Bose-Einstein condensates
We present a theory for the description of energy relaxation in a nonequilibrium condensate of bosonic particles. The approach is based on coupling to a thermal bath of other particles (e.g., phonons in a crystal, or noncondensed atoms in a cold atom system), which are treated with a Monte Carlo t...
Saved in:
| Main Authors: | , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
2013
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/100621 http://hdl.handle.net/10220/9908 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | We present a theory for the description of energy relaxation in a nonequilibrium condensate of bosonic
particles. The approach is based on coupling to a thermal bath of other particles (e.g., phonons in a crystal,
or noncondensed atoms in a cold atom system), which are treated with a Monte Carlo type approach.
Together with a full account of particle-particle interactions, dynamic driving, and particle loss, this offers
a complete description of recent experiments in which Bose-Einstein condensates are seen to relax their
energy as they propagate in real space and time. As an example, we apply the theory to the solid-state
system of microcavity exciton polaritons, in which nonequilibrium effects are particularly prominent. |
|---|