Cooling of Sr to high phase-space density by laser and sympathetic cooling in isotopic mixtures

Details Cooling of Sr to high phase-space density by laser and sympathetic cooling in isotopic mixtures Cooling of Sr to high phase-space density by laser and sympathetic cooling in isotopic mixtures

2006-01-12

arxiv.org/abs/physics/0601086v1

Phys. Rev. A 73, 023408 (2006)

Physics

Atomic Physics

5 pages, 4 figures

Scientific paper

10.1103/PhysRevA.73.023408

Based on an experimental study of two-body and three-body collisions in ultracold strontium samples, a novel optical-sympathetic cooling method in isotopic mixtures is demonstrated. Without evaporative cooling, a phase-space density of $6\times10^{-2}$ is obtained with a high spatial density that should allow to overcome the difficulties encountered so far to reach quantum degeneracy for Sr atoms.

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