Dynamics of evaporative cooling in magnetically trapped atomic hydrogen
arXiv:cond-mat/0007179 · doi:10.1103/PhysRevA.62.033602
Abstract
We study the evaporative cooling of magnetically trapped atomic hydrogen on the basis of the kinetic theory of a Bose gas. The dynamics of trapped atoms is described by the coupled differential equations, considering both the evaporation and dipolar spin relaxation processes. The numerical time-evolution calculations quantitatively agree with the recent experiment of Bose-Einstein condensation with atomic hydrogen. It is demonstrated that the balance between evaporative cooling and heating due to dipolar relaxation limits the number of condensates to 9x10^8 and the corresponding condensate fraction to a small value of 4% as observed experimentally.
5 pages, REVTeX, 3 eps figures, Phys. Rev. A in press
References in corpus (6)
- Bose-Einstein Condensation of Atomic Hydrogen
- Cold Collision Frequency Shift of the 1S-2S Transition in Hydrogen
- Quantum Kinetic Theory of Condensate Growth---Comparison of Experiment and Theory
- Quantum Kinetic Theory III: Quantum kinetic master equation for strongly condensed trapped systems
- Quantum dynamics of evaporatively cooled Bose-Einstein Condensates
- Quantum Kinetic Theory for a Condensed Bosonic Gas
Cited by in corpus (3)
- Efficient rapid production of a Bose-Einstein condensate by overcoming serious three-body loss
- Optimization of evaporative cooling towards a large number of Bose-Einstein condensed atoms
- Stabilization of the number of Bose-Einstein condensed atoms in evaporative cooling via three-body recombination loss