Normal Fluid Density, Second Sound, and Fourth Sound in an Anisotropic Superfluid Academic Article uri icon

abstract

  • In a superfluid with an anisotropic quasiparticle energy, the normal-fluid density is a diagonal tensor. The second and fourth sound velocities are distinctly anisotropic, so that heat-pulse or fourth-sound studies with an applied magnetic field H may permit identification of the direction of the gap axis with respect to H. High-frequency sound velocities may display a weaker anisotropy. 1973 The American Physical Society.

published proceedings

  • Physical Review Letters

author list (cited authors)

  • Saslow, W. M.

citation count

  • 23

complete list of authors

  • Saslow, WM

publication date

  • October 1973