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arXiv · 0912.0747

Method for deducing anisotropic spin-exchange rates

T. G. Walker·I. A. Nelson·S. Kadlecek
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Abstract

Using measured spin-transfer rates from alkali atoms to He-3, combined with spin-relaxation rates of the alkali atoms due to He-3 and He-4, it should be possible to differentiate between isotropic and anisotropic spin-exchange. This would give a fundamental limit on the He-3 polarization attainable in spin-exchange optical pumping. For K-He, we find the limit to be 0.90+-0.11.

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T. G. Walker, I. A. Nelson, S. Kadlecek. 2009-12-04. Method for deducing anisotropic spin-exchange rates. https://doi.org/10.1103/physreva.81.032709

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