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Title: Topological Phase Separation in 2D Hard-core Bose-Hubbard System Away from Half-Filling
Authors: Moskvin, A. S.
Bostrem, I. G.
Ovchinnikov, A. S.
Issue Date: 2003
Publisher: Pleiades Publishing Ltd
Citation: Moskvin A. S. Topological Phase Separation in 2D Hard-core Bose-Hubbard System Away from Half-Filling / A. S. Moskvin, I. G. Bostrem, A. S. Ovchinnikov. — DOI 10.1055/a-1589-9556 // JETP Letters. — 2003. — Vol. 78. — Iss. 12. — P. 772-777.
Abstract: We suppose that the doping of the 2D hard-core boson system away from half-filling may result in the formation of a multicenter topological defect such as charge order (CO) bubble domain(s) with Bose superfluid (BS) and extra bosons both localized in domain wall(s), or a topological CO + BS phase separation, rather than a uniform mixed CO + BS supersolid phase. Starting from the classical model, we predict the properties of the respective quantum system. The long-wavelength behavior of the system is believed to resemble that of granular superconductors, CDW materials, Wigner crystals, and multiskyrmion system akin in a quantum Hall ferromagnetic state of a 2D electron gas. © 2003 MAIK "Nauka/Interperiodica".
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 4043075802
ISSN: 0021-3640
DOI: 10.1055/a-1589-9556
metadata.dc.description.sponsorship: We acknowledge the support by SMWK grant, INTAS (grant no. 01-0654), CRDF (grant no. REC-005), RME (grant nos. E 02-3.4-392 and UR.01.01.042), and the Russian Foundation for Basic Research (grant no. 01-02-96404). One of us (A.S.M.) has benefited from discussions with C. Timm, S.-L. Drechsler, and T. Mishonov.
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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