Quantum Phase Transition ofin Aerogel at a Nonzero Pressure
Open Access
- 14 July 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 79 (2) , 253-256
- https://doi.org/10.1103/physrevlett.79.253
Abstract
We present evidence for a nonzero pressure, superfluid phase transition of in 98.2% open aerogel. Unlike bulk which is a superfluid at at all pressures (densities) between zero and the melting pressure, in aerogel is not superfluid unless the density exceeds a critical value . About 90% of the added above contributes to the superfluid density.
Keywords
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