Reentrant Superfluid-Insulator Transitions of Random Boson Hubbard Models
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概要
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Superfluid-insulator transitions are studied for the ground state of the Boson Hubbard model with random potentials . The topology of the phase diagram is discussed. Reentrant transitions between the superfluid phase and the Bose-glass insulator phase are found in an arbitrary number of dimensions. The present results are based on a perturbational scaling argument and a quantum Monte Carlo calculation. The Monte Carlo algorithm is also reported in detail.
- 社団法人日本物理学会の論文
- 1995-05-15
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