Matter-wave analog of an optical random laser
arXiv:1103.3424 · doi:10.1103/PhysRevA.84.023624
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.
4 pages, 3 figures version accepted for publication in Phys. Rev. A; minor changes, the present title substituted for "Atom Random Laser"
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- Tailoring Anderson localization by disorder correlations in 1D speckle potentials
- Dark soliton in a disorder potential
- Controlling disorder with periodically modulated interactions
- Expansion of a matter wave packet in a one-dimensional disordered potential in the presence of a uniform bias force
- Breakdown of Anderson localization of interacting quantum bright solitons in a disorder potential
- Synthetic Random Flux Model in a periodically-driven optical lattice
- Localization of weakly interacting bosons in two dimensions: disorder vs lattice geometry effects
- Probing quantum transport by engineering correlations in a speckle potential
- Localisation and transport in bidimensional random models with separable Hamiltonians