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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.
- 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 phaseseparation, 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”.
- Subjects
TOPOLOGY; SUPERFLUIDITY; QUANTUM statistics; QUANTUM chemistry; SUPERCONDUCTORS; SOLID state electronics
- Publication
JETP Letters, 2003, Vol 78, Issue 12, p772
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/1.1664002