Abstract
The absence of a characteristic length at the lambda temperature of liquid helium is used to determine the wave-number dependence of the phase fluctuations and the second-sound dispersion relation where and are the frequency and wave number and . Further predictions are singular temperature variation for second-sound damping () and the thermal conductivity ().
- Received 24 April 1967
DOI:https://doi.org/10.1103/PhysRevLett.18.891
©1967 American Physical Society