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Article
Superglass Phase of 4He
Physics Review Letters
Publication Date
2006
Abstract
We study different solid phases of 4He, by means of path integral Monte Carlo simulations based on a recently developed worm algorithm. Our study includes simulations that start off from a high-T gas phase, which is then “quenched” down to T=0.2 K. The low-T properties of the system crucially depend on the initial state. While an ideal hcp crystal is a clear-cut insulator, the disordered system freezes into a superglass, i.e., a metastable amorphous solid featuring off-diagonal long-range order and superfluidity.
Disciplines
Comments
This is the pre-published version harvested from ArXiv. The published version is located at http://prl.aps.org/abstract/PRL/v96/i10/e105301
Citation Information
M Boninsegni, Nikolai Prokof'ev and Boris Svistunov. "Superglass Phase of 4He" Physics Review Letters Vol. 96 Iss. 10 (2006) Available at: http://works.bepress.com/nikolai_prokofev/16/