QUANTUM REFLECTION OF SUBMILLIKELVIN ATOMIC-HYDROGEN FROM BULK SUPERFLUID HE-4

Authors
YU IA DOYLE JM SANDBERG JC CESAR CL KLEPPNER D GREYTAK TJ
Citation
Ia. Yu et al., QUANTUM REFLECTION OF SUBMILLIKELVIN ATOMIC-HYDROGEN FROM BULK SUPERFLUID HE-4, Physica. B, Condensed matter, 194, 1994, pp. 15-16
Citations number
10
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
194
Year of publication
1994
Part
1
Pages
15 - 16
Database
ISI
SICI code
0921-4526(1994)194:<15:QROSAF>2.0.ZU;2-R
Abstract
We present the results of experiments measuring the sticking probabili ty for atomic H on bulk superfluid He-4 for H atom temperatures of 0.3 -4.0 mK. Magnetically trapped, evaporatively cooled gases of atomic hy drogen were used. The atom temperature (T) dependence of the sticking probability (s(T)) is consistent with the observation of the onset of universal quantum reflection (s(T) is-proportional-to T1/2). The data are in reasonable agreement with recent theoretical calculations.