Abstract
Using an optical interferometric method, the cavitation density of bulk superfluid helium at is measured and found to be . A well-established equation of state for liquid helium at negative pressures converts this to the cavitation pressure . This cavitation pressure is consistent with a model taking into account the presence of quantized vortices, but disagrees with previously published experimental values of .
- Received 14 April 2015
- Revised 10 June 2015
DOI:https://doi.org/10.1103/PhysRevB.91.214115
©2015 American Physical Society