The influence of F-wave pairing fluctuations on sound propagation in superfluid /sup 3/He-A

Journal Article · Mon Sep 01 00:00:00 EDT 1986 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00681705· OSTI ID:6954590

Wojtanowski, W

The theory of sound propagation in pair-correlated Fermi liquids developed previously by Wolfle, with additional F-wave pairing fluctuations, is applied to the ABM state. Expressions for the anisotropic sound absorption and velocity at arbitrary temperature and frequency in the collisionless limit are derived. The F-wave pairing fluctuations give a large effect on the normal-flapping mode frequency at low temperatures. The corresponding shift in the sound attenuation peak of this collective mode provides a sensitive probe of the F-wave pair coupling constant g/sub 3/. There is also a pronounced effect on the super-flapping mode attenuation peak, which becomes well defined when F-wave pairing fluctuations are considered.

• Research Organization: Technische Univ. Munchen, Garching
• OSTI ID: 6954590
• Journal Information: J. Low Temp. Phys.; (United States), Vol. 64:5/6
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
HELIUM 3
F WAVES
WAVE PROPAGATION
ABSORPTION
ATTENUATION
COOPER PAIRS
COUPLING CONSTANTS
FERMI GAS
FLUCTUATIONS
QUANTUM FLUIDS
SUPERFLUIDITY
ULTRASONIC WAVES
VELOCITY
EVEN-ODD NUCLEI
FLUIDS
GASES
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
NUCLEI
PARTIAL WAVES
SOUND WAVES
STABLE ISOTOPES
VARIATIONS
640450* - Fluid Physics- Superfluidity