Quantum cavitation in liquid helium
M. Guilleumas, M. Barranco, D.M. Jezek, R.J. Lombard, M. Pi
TL;DR
This paper investigates the temperature at which cavitation in liquid helium transitions from thermal activation to quantum tunneling, providing theoretical crossover temperatures that align with recent experimental data.
Contribution
It introduces a functional-integral approach to determine the quantum cavitation crossover temperature in liquid helium across various negative pressures.
Findings
Crossover temperatures for helium isotopes are calculated.
Results agree with recent experimental data on 4He.
The approach applies across the entire negative pressure range.
Abstract
Using a functional-integral approach, we have determined the temperature below which cavitation in liquid helium is driven by thermally assisted quantum tunneling. For both helium isotopes, we have obtained the crossover temperature in the whole range of allowed negative p essures. Our results are compatible with recent experimental results on 4He.
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