Engineering momentum profiles of cold-atom beams
arXiv:1903.11462 · doi:10.1103/PhysRevA.100.033604
Abstract
We describe a procedure for engineering beams of cold atoms by selectively draining particles from a trapped gas based on momenta. Atoms escape through a filter potential that only transmits atoms with the desired momenta. We outline an algorithm that outputs a filter potential that produces a pre-specified beam momentum profile. We illustrate this procedure for the case of a narrow band-pass (NBP) quantum filter. Lastly, we discuss the application of the NBP filter for probing the self-energy and effective mass of Bose polarons, as well as the corresponding Landau criterion.
arXiv commentversion accepted for publication in PRA
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- Mean-field study of repulsive 2D and 3D Bose polarons
- Filtering Spins by Scattering from a Lattice of Point Magnets
- Impurity in a three-dimensional unitary Bose gas
- Emergence of a Bose polaron in a small ring threaded by the Aharonov-Bohm flux
- Imaginary spin-orbital coupling in parity-time symmetric systems with momentum-dependent gain and loss