Defect-induced supersolidity with soft-core bosons

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dc.contributor.authorCinti, F.en_ZA
dc.contributor.authorMacri, T.en_ZA
dc.contributor.authorLechner, W.en_ZA
dc.contributor.authorPupillo, G.en_ZA
dc.contributor.authorPohl, T.en_ZA
dc.date.accessioned2016-11-24T06:51:48Z
dc.date.available2016-11-24T06:51:48Z
dc.date.issued2014
dc.descriptionCITATION: Cinti, F., et al. 2014. Defect-induced supersolidity with soft-core bosons. Nature Communications, 5, Article number:3235, doi:10.1038/ncomms4235.
dc.description.abstractMore than 40 years ago, Andreev, Lifshitz and Chester suggested the possible existence of a peculiar solid phase of matter, the microscopic constituents of which can flow superfluidly without resistance due to the formation of zero-point defects in the ground state of self-assembled crystals. Yet, a physical system where this mechanism is unambiguously established remains to be found, both experimentally and theoretically. Here we investigate the zero-temperature phase diagram of two-dimensional bosons with finite-range soft-core interactions. For low particle densities, the system is shown to feature a solid phase in which zero-point vacancies emerge spontaneously and give rise to superfluid flow of particles through the crystal. This provides the first example of defect-induced, continuous-space supersolidity consistent with the Andreev–Lifshitz–Chester scenario.en_ZA
dc.description.urihttp://www.nature.com/articles/ncomms4235
dc.description.versionPublisher's version
dc.format.extent6 pages
dc.identifier.citationCinti, F., et al. 2014. Defect-induced supersolidity with soft-core bosons. Nature Communications, 5, Article number:3235, doi:10.1038/ncomms4235
dc.identifier.issn2041-1723 (online)
dc.identifier.otherdoi:10.1038/ncomms4235
dc.identifier.urihttp://hdl.handle.net/10019.1/99892
dc.language.isoen_ZAen_ZA
dc.publisherNature Publishing Group
dc.rights.holderMacmillan
dc.subjectDefect-induced supersolidityen_ZA
dc.subjectBosonsen_ZA
dc.subjectMatter (Physics)en_ZA
dc.subjectFluid mechanicsen_ZA
dc.subjectSuperfluidityen_ZA
dc.subjectCrystals at low temperaturesen_ZA
dc.subjectCrystals -- Defectsen_ZA
dc.titleDefect-induced supersolidity with soft-core bosonsen_ZA
dc.typeArticleen_ZA
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