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Walker, Thad G.; Kadlecek, Stephen; Nelson, Ian

Date

Nov 25, 2009

Abstract

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

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