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Influence of superflow on collective excitations in /sup 3/He-B

Journal Article · · J. Low Temp. Phys.; (United States)
DOI:https://doi.org/10.1007/BF00681306· OSTI ID:5645589
The influence of superflow on the order parameter collective modes in /sup 3/He-B is investigated for temperatures 0< or =T/T/sub c/< or =0.5 by the continual intergral method. The superflow induces a gap distortion, which splits the pair-breaking, squashing, and real squashing modes at zero momentum k. Furthermore, a crossing of the real squashing mode branches with different Vertical BarJ/sub z/Vertical Bar occurs at nonzero k. In addition, the superflow makes it possible to observe the pairbreaking modes and causes a hydrodynamic shift of longitudinal NMR frequency.
Research Organization:
Low Temperature Laboratory, Helinki University of Technology, Espoo, Finland
OSTI ID:
5645589
Journal Information:
J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 58:3; ISSN JLTPA
Country of Publication:
United States
Language:
English