Thermodynamics and nucleation of bubbles in normal and superfluid liquid helium-4 at negative pressures

Journal Article · Thu May 01 04:00:00 EDT 1997 · Journal of Low Temperature Physics

DOI:https://doi.org/10.1007/BF02397457· OSTI ID:535605

Hall, S C; Maris, H J ^[1]

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1. Brown Univ., Providence, RI (United States)

The authors report on a theoretical investigation of liquid helium-4 at negative pressures. For normal liquid helium they estimate the thermodynamic functions for negative pressure via extrapolation of measurements made for positive pressures. They determine the free energy as a function of density and temperature and find the location of the liquid-vapor spinodal. The results of these calculations are used to construct a temperature-dependent density-functional scheme to describe the inhomogeneous liquid. This density functional is then applied to calculate the rate at which bubbles nucleate in the liquid at negative pressures. The authors include a discussion of the properties of the superfluid phase based on the use of Landau`s quasi-particle model.

• Sponsoring Organization: USDOE
• OSTI ID: 535605
• Journal Information: Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 3-4 Vol. 107; ISSN JLTPAC; ISSN 0022-2291
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BUBBLES
EQUATIONS OF STATE
HELIUM 4
NUCLEATION
PRESSURE DEPENDENCE
THERMODYNAMICS