Spin physics in solid helium: Experimental results and applications
Spectroscopy of Ions and Atoms in Superfluid Helium
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Abstract
We have observed optical pumping signals from Cs atoms trapped in solid4He. While the longitudinal electronic spin relaxation timeT1 is found to be in the range of 1–2 s, the transverse relaxation timeT2, as inferred from magnetic resonance linewidths has a lower bound of 150 μs, and is determined by magnetic field inhomogeneities. We present a quantitative discussion of how paramagnetic species trapped in solid He might be used in a highly sensitive search for permanent atomic electric dipole moments.
PACS
32.80.Bx 76.70.Hb 67.80.MgPreview
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