Propagation of guided cold atoms
arXiv:cond-mat/0211661 · doi:10.1016/S1007-5704(03)00032-7
Abstract
In this article we focus on the propagation of a beam of particles guided by a transversely confining potential. We consider different regimes. In the classical regime, we describe the beam by means of a set of hydrodynamic-like equations. We apply this formalism in order to investigate two practical ways for increasing the collision rate: by using a constriction or by tilting the guide. A high enough collision rate is indeed the most crucial prerequisite for reaching the quantum degenerate regime by means of evaporative cooling. In the quantum regime, we study the propagation of bosonic atoms through a constriction in two opposite regimes: the collision-less one and the Thomas-Fermi one.
arXiv comment17 pages, 2 figures, Proceedings of the International Workshop on Chaotic Transport and Complexity in Classical and Quantum Dynamics, the 24-29 Juin 2002 in Carry-Le-Rouet. submitted to : Communications in Nonlinear Science and Numerical Simulation (Elsevier)
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Cited by in corpus (8)
- Realization of a magnetically guided atomic beam in the collisional regime
- Solitonic transmission of Bose-Einstein matter waves
- Evaporative Cooling of a Guided Rubidium Atomic Beam
- A moving magnetic mirror to slow down a bunch of atoms
- Interaction of a propagating guided matter wave with a localized potential
- Kinetics of the evaporative cooling of an atomic beam
- Hidden symmetry and nonlinear paraxial atom optics
- Transverse excitations of ultracold matter waves upon propagation past abrupt waveguide changes