Exotic behavior of hydrogen atoms in solid H2 at temperatures below 1 K |
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Authors: | Ahokas J Järvinen J Khmelenko V V Lee D M Vasiliev S |
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Affiliation: | Wihuri Physical Laboratory, Department of Physics, University of Turku, 20014 Turku, Finland. |
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Abstract: | We present the first magnetic resonance study of atomic hydrogen embedded in solid H2 films for temperatures 150-900 mK. We found that at T approximately 150 mK average concentrations of H atoms of order 10(18 cm(-3) are very stable against recombination during two weeks of observations. The distribution of the population of the two lowest hyperfine states is found to be non-Boltzmann, with a very large occupation of the ground state. We consider the possibility of formation in solid H2 of regions with high local concentrations of H atoms, where collective quantum phenomena might occur. |
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