Pressure-Driven Evaporative Cooling in Atom Guides
arXiv:1404.1410 · doi:10.1103/PhysRevA.90.043612
Abstract
We study steady-state evaporation in an atom guide via Monte Carlo simulations. The evaporation surface follows a specific profile as a function of longitudinal guide location. We demonstrate that the choice of evaporation profile significantly impacts the performance of the evaporation. Our simulations also demonstrate a significant performance boost in the evaporation when using a longitudinally compressed guide. We show that for a purely pressure-driven atom beam, it should be possible to reach degeneracy within a $0.5~\m$ guide for experimentally feasible, albeit challenging, loading conditions.
arXiv comment5 pages, 4 figures
References in corpus (8)
- Atom lasers: production, properties and prospects for precision inertial measurement
- Evaporative cooling of an atomic beam
- Realization of a magnetically guided atomic beam in the collisional regime
- Evaporative Cooling of a Guided Rubidium Atomic Beam
- Direct Simulation Monte Carlo method for cold atom dynamics: classical Boltzmann equation in the quantum collision regime
- A moving magnetic mirror to slow down a bunch of atoms
- Enhanced heat flow in the hydrodynamic-collisionless regime
- Kinetics of the evaporative cooling of an atomic beam