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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2003, Volume 78, Issue 12, Pages 1293–1298
(Mi jetpl2697)
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This article is cited in 15 scientific papers (total in 15 papers)
CONDENSED MATTER
Topological phase separation in 2D hard-core Bose–Hubbard system away from half-filling
A. S. Moskvin, I. G. Bostrem, A. S. Ovchinnikov Ural State University, Ekaterinburg
Abstract:
We suppose that the doping of the 2D hard-core boson system away from half-filling may result in the formation of multi-center 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 $\mathit{topological}$ CO+BS $\mathit{phase~separation}$, rather than an 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 remind that of granular superconductors, CDW materials, Wigner crystals, and multi-skyrmion system akin in a quantum Hall ferromagnetic state of a 2D electron gas.
Received: 14.11.2003
Citation:
A. S. Moskvin, I. G. Bostrem, A. S. Ovchinnikov, “Topological phase separation in 2D hard-core Bose–Hubbard system away from half-filling”, Pis'ma v Zh. Èksper. Teoret. Fiz., 78:12 (2003), 1293–1298; JETP Letters, 78:12 (2003), 772–777
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https://www.mathnet.ru/eng/jetpl2697 https://www.mathnet.ru/eng/jetpl/v78/i12/p1293
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Abstract page: | 143 | Full-text PDF : | 54 | References: | 42 |
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