Matter-wave analog of an optical random laser
Abstract
The accumulation of atoms in the lowest energy level of a trap and the subsequent out-coupling of these atoms is a realization of a matter-wave analog of a conventional optical laser. Optical random lasers require materials that provide optical gain but, contrary to conventional lasers, the modes are determined by multiple scattering and not a cavity. We show that a Bose-Einstein condensate can be loaded in a spatially correlated disorder potential prepared in such a way that the Anderson localization phenomenon operates as a band-pass filter. A multiple scattering process selects atoms with certain momenta and determines laser modes which represents a matter-wave analog of an optical random laser.
Keywords
Cite
@article{arxiv.1103.3424,
title = {Matter-wave analog of an optical random laser},
author = {Marcin Plodzien and Krzysztof Sacha},
journal= {arXiv preprint arXiv:1103.3424},
year = {2011}
}
Comments
4 pages, 3 figures version accepted for publication in Phys. Rev. A; minor changes, the present title substituted for "Atom Random Laser"