Criticality of the excess energy cost due to the unit-flux-quantum external field for the (2 + 1)D superfluid?insulator transition
Criticality of the excess energy cost due to the unit-flux-quantum external field for the (2 + 1)D superfluid?insulator transition
复制标题
(2 1)D 超流绝缘体跃迁的单位通量量子外场导致额外能量成本的临界
DOI：
10.1088/1742-5468/ac5cb2
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Nishiyama Yoshihiro
中科院分区：
文献类型：
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作者：
桃﨑智隆;中川智之;Yoshihiro Ueda;Kota Ikeda;Nishiyama Yoshihiro
数值研究了二维（2D）自旋- s = 1 XY模型作为（2+ 1）D超流体-莫特-绝缘子（SF-MI）跃迁的实现。对相互作用参数进行了扩展，以抑制对有限尺寸缩放的修正。因此，单位通量量子（Φ= 2π）的外场通过结合相位因子应用于二维簇
The two-dimensional (2D) spin-S= 1 XY model was investigated numerically as a realization of the (2+ 1) D superfluid–Mott-insulator (SF–MI) transition. The interaction parameters are extended so as to suppress corrections to finite-size scaling. Thereby, the external field of a unit flux quantum (Φ= 2π) is applied to the 2D cluster by incorporating the phase factor