Quantum Monte Carlo Study of Hard-Core Bosons on the Anisotropic Triangular Lattice
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概要
- 論文の詳細を見る
We study the ground state properties of the extended hard-core Bose–Hubbard model in a two-dimensional anisotropic triangular lattice by quantum Monte Carlo simulations. We present the ground state phase diagram at half filling. Four kinds of phases, including two solid phases, a superfluid phase and a supersolid phase, are observed. The supersolid phase exists only in a narrow region close to the isotropic limit. Away from half filling, we find that the results are strongly dependent on the phase at half filling. No supersolid phase exists if the ground state at half filling is a superfluid or a solid.
- Physical Society of Japanの論文
- 2009-09-15
著者
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Gan Jing-Fu
Department of Electrical Engineering, North China Electric Power University, Baoding, Hebei 071003, China
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Gan Jing-Yu
Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190, China
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Gan Jing-Yu
Institute of Physics, Chinese Academy of Sciences, P. O. Box 603, Beijing 100190, China