Unusual Doppler effect in the B phase of superfluid He-3

Authors
Kenis, AM Nepomnyashchy, YA Mann, A Revzen, M
Citation
Am. Kenis et al., Unusual Doppler effect in the B phase of superfluid He-3, PHYS REV L, 82(3), 1999, pp. 584-587
Citations number
14
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
82
Issue
3
Year of publication
1999
Pages
584 - 587
Database
ISI
SICI code
0031-9007(19990118)82:3<584:UDEITB>2.0.ZU;2-5
Abstract
We calculate the unusual Doppler effect in the B phase of superfluid He-3 i n the Ginzburg-Landau regime and at low temperatures. We analyze the nontri vial dependence of the sound velocities and of the internal Doppler-shift c oefficients on the superfluid velocity in the Ginzburg-Landau regime. The v alue of the fourth-sound Doppler-shift coefficient is most remarkable: it e xceeds 2.2 (the intuitive order of magnitude is 1). [S0031-9007(98)07981-2] .