Efficient Two-dimensional Subrecoil Raman Cooling of Atoms in a Tripod Configuration

Details Efficient Two-dimensional Subrecoil Raman Cooling of Atoms in a Tripod Configuration Efficient Two-dimensional Subrecoil Raman Cooling of Atoms in a Tripod Configuration

2010-06-29

arxiv.org/abs/1006.5618v3

Physics

Atomic Physics

6 pages, 3 figures

Scientific paper

We present an efficient method for subrecoil cooling of neutral atoms by applying Raman cooling in 2D to a four-level tripod-system. The atoms can be cooled simultaneously in two directions using only three laser beams. We describe the cooling process with a simple model showing that the momentum distribution can be rapidly narrowed to velocity spread down to $0.1v_\text{rec}$, corresponding to effective temperature equal to $0.01T_\text{rec}$. This method opens new possibilities for cooling of neutral atoms.

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