Ring Exchanges and the Supersolid Phase ofHe<mml:mprescripts/><mml:none/>4

2004/09/13 by D. M. Ceperley, David M. Ceperley, B. Bernu · 10 citations
Physics and Astronomy · #Advanced Chemical Physics Studies #Cold Atom Physics and Bose-Einstein Condensates #Quantum, superfluid, helium dynamics #cond-mat.stat-mech

paper · pdf · doi:10.1103/physrevlett.93.155303

published as Phys. Rev. Letts. 95, 155303 (2004)

arxiv created 2004/09/13 · openalex publication_date 2004/10/07 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Using path integral Monte Carlo simulations we calculate exchange frequencies in bulk hcp 4He as atoms undergo ring exchange. We fit the frequencies to a lattice model and examine whether such atoms could become a supersolid, that is, have a nonclassical rotational inertia. We find that the scaling with respect to the number of exchanging atoms is such that superfluid behavior will not be observed in a perfect 4He crystal.

Citations

• Path integrals in the theory of condensed helium

Cited by

• Supersolidity from defect condensation in the extended boson Hubbard model
• Fate of Vacancy-Induced Supersolidity inHe<mml:mprescripts/><mml:none/>4
• Bose-Einstein Condensation of Incommensurate SolidHe<mml:mprescripts/><mml:none/>4
• Solid 4He and the Supersolid Phase: from Theoretical Speculation to the Discovery of a New State of Matter? –A Review of the Past and Present Status of Research–
• Theory of the superglass phase
• Supersolids in confined fermions on one-dimensional optical lattices
• Superfluidity versus localization in bulkHe<mml:mprescripts/><mml:none/>4at zero temperature
• Superfluidity of DenseHe<mml:mprescripts/><mml:none/>4in Vycor
• Theory for supersolidHe<mml:mprescripts/><mml:none/>4: Vacancy condensation facilitated by a low-energy bound state of a vacancy and an interstitial
• Mass flow through solid<mml:mrow/>4He induced by the fountain effect

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