Thermally assisted quantum cavitation in solutions of 3He in 4He
D. Jezek, M. Guilleumas, M. Pi, and M. Barranco
TL;DR
This study explores how adding 3He to liquid helium affects the temperature at which cavitation transitions from quantum to thermal behavior, revealing a significant reduction in crossover temperature with increased 3He concentration.
Contribution
It provides new insights into the influence of 3He impurities on quantum cavitation in helium, extending understanding beyond pure 4He.
Findings
Crossover temperature T* decreases with 3He concentration
T* drops below 50 mK for 3He concentrations above 0.02
Homogeneous cavitation pressure remains close to the spinodal pressure
Abstract
We have investigated the quantum-to-thermal crossover temperature T* for cavitation in liquid helium mixtures up to 0.05 3He concentrations. With respect to the pure 4He case, T* is sizeably reduced, to a value below 50 mK for 3He concentrations above 0.02. As in pure 4He, the homogeneous cavitation pressure is systematically found close to the spinodal pressure.
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