2001/09/19 by Frederic Caupin, Frédéric Caupin, Sebastien Balibar +2
Chemistry · Physics and Astronomy · #Advanced Physical and Chemical Molecular Interactions #Quantum, superfluid, helium dynamics #Rare-earth and actinide compounds #cond-mat.soft #cond-mat.stat-mech
paper · pdf · doi:10.1023/a:1013718917961
published as J. Low Temp. Phys. 126 (2002), 91-96 · 6 pages, 2 figures. To be published in Journal of Low Temperature Physics, Proceedings of the International Symposium on Quantum Fluids and Solids QFS2001
arxiv created 2001/09/19 · openalex publication_date 2002/01/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Experimental investigation of cavitation in liquid helium 3 has revealed a singular behaviour in the degenerate region at low temperature. As the temperature decreases below 80 mK, the cavitation pressure becomes significantly more negative. To investigate this, we have extrapolated the Fermi parameters in the negative pressure region. This allowed us to calculate the zero sound velocity, which we found to remain finite at the spinodal limit where the first sound velocity vanishes. We discuss the impact on the nucleation of the gas phase in terms of a quantum stiffness of the Fermi liquid. As a result we predict a cavitation pressure which is nearer to the spinodal line than previously thought.