Coherence of trapped one-dimensional (quasi-)condensates and acontinuous atom lasers in waveguides
| dc.creator | Proukakis, N. P. | |
| dc.date | 2003-10-31 | |
| dc.date.accessioned | 2026-07-07T02:54:33Z | |
| dc.date.available | 2026-07-07T02:54:33Z | |
| dc.description | We present a model for a continuous atom laser in a one-dimensional waveguide. The beam is formed by continuous Raman outcoupling of a trapped one-dimensional (quasi-)condensate, which is created by imposing a tightly confining transverse optical potential on a three-dimensional magnetically trapped ultracold thermal gas. The trapped (quasi-)condensate is modelled by a stochastic Langevin equation, in which pumping arises naturally from the surrounding three-dimensional thermal cloud, which acts as its heat bath. When the outcoupling is turned on, such pumping leads to continuous replenishing of the (quasi-)condensate, and thus to a steady-state operation for the atom laser, which is described by a nonlinear Schroedinger equation, coupled to the Langevin equation for the (quasi-)condensate. This model is used to study the temporal and spatial evolution of the coherence length of the (quasi-)condensate and the atom laser over the entire system. | |
| dc.description | Las. Phys. 13, 527-536 (2003) | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0311003 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0311003 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/22591 | |
| dc.subject | Condensed Matter | |
| dc.title | Coherence of trapped one-dimensional (quasi-)condensates and acontinuous atom lasers in waveguides | |
| dc.type | text |