Abstract

The system of equations that describes the sound propagation in superfluid helium at arbitrary values of the relative velocity of the normal and superfluid component is obtained. By using the general dispersion relation of this system, we analyze the influence of a finite relative velocity on the first sound velocity. We find that the change in the first sound velocity is determined by the small value of the thermal expansion coefficient.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call