@inproceedings{3303fdd1649c481586649e45ef65c447,
title = "Quantum phase transition of 4He confined in nanoporous media",
abstract = "4He confined in nanoporous media is an excellent model system for studying a strongly correlated Bose liquid and solid in a confinement potential. We studied superfluidity and liquid-solid phase transition of 4He confined in a porous Gelsil glass that had nanopores 2.5 nm in diameter. The obtained pressure-temperature phase diagram is fairly unprecedented: the superfluid transition temperature approaches zero at 3.4 MPa, and the freezing pressure is enhanced by approximately 1 MPa from the bulk one. These features indicate that the confined 4He undergoes a superfluid-nonsuperfluid-solid quantum phase transition at zero temperature. The nonsuperfluid phase may be a localized Bose-condensed state in which global phase coherence is destroyed by a strong correlation between the 4He atoms or by a random potential.",
keywords = "Nanoporous media, Quantum phase transition, Strongly correlated system, Superfluidity",
author = "Keiya Shirahama",
year = "2006",
month = dec,
day = "1",
doi = "10.1063/1.2354698",
language = "English",
isbn = "0735403473",
series = "AIP Conference Proceedings",
pages = "273--276",
booktitle = "LOW TEMPERATURE PHYSICS",
note = "LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 ; Conference date: 10-08-2006 Through 17-10-2006",
}