Path integral Monte Carlo simulation of helium at negative pressures

Details Path integral Monte Carlo simulation of helium at negative pressures Path integral Monte Carlo simulation of helium at negative pressures

1999-09-11

arxiv.org/abs/cond-mat/9909169v2

Physics

Condensed Matter

6 pages, 7 figures, submitted to Physical Review B Revised: new reference, replaced figures

Scientific paper

10.1103/PhysRevB.61.9055

Path integral Monte Carlo (PIMC) simulations of liquid helium at negative pressure have been carried out for a temperature range from the critical temperature to below the superfluid transition. We have calculated the temperature dependence of the spinodal line as well as the pressure dependence of the isothermal sound velocity in the region of the spinodal. We discuss the slope of the superfluid transition line and the shape of the dispersion curve at negative pressures.

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