We investigate quantum phase transitions in XY spin models using Dzyaloshinsky-Moriya(DM) interactions. We identify the quantum critical points via quantum Fisher information and quantum coherence, finding that higher...We investigate quantum phase transitions in XY spin models using Dzyaloshinsky-Moriya(DM) interactions. We identify the quantum critical points via quantum Fisher information and quantum coherence, finding that higher DM couplings suppress quantum phase transitions. However, quantum coherence(characterized by the l_1-norm and relative entropy) decreases as the DM coupling increases. Herein, we present both analytical and numerical results.展开更多
纺纱用牵伸胶圈 rubber apron for spinning machine；rubber joint used for weaving系用于纺纱机起牵伸作用的橡胶配件，又称牵伸皮圈。圆筒形，由内、外胶层和增强层三部分组成，增强层一般由螺旋形棉线和锦纶线组成。分上下胶圈，...纺纱用牵伸胶圈 rubber apron for spinning machine；rubber joint used for weaving系用于纺纱机起牵伸作用的橡胶配件，又称牵伸皮圈。圆筒形，由内、外胶层和增强层三部分组成，增强层一般由螺旋形棉线和锦纶线组成。分上下胶圈，一般成对使用。按用途分棉纺胶圈、毛纺胶圈和化纤纺纱胶圈。根据所接触的金属及纤维,展开更多
基金supported by the National Natural Science Foundation of China(Grant Nos.11675113,and 11765016)the Natural Science Foundation of Beijing(Grant No.KZ201810028042)Jiangxi Education Department Fund(Grant Nos.GJJ161056,and KJLD14088)
文摘We investigate quantum phase transitions in XY spin models using Dzyaloshinsky-Moriya(DM) interactions. We identify the quantum critical points via quantum Fisher information and quantum coherence, finding that higher DM couplings suppress quantum phase transitions. However, quantum coherence(characterized by the l_1-norm and relative entropy) decreases as the DM coupling increases. Herein, we present both analytical and numerical results.
文摘纺纱用牵伸胶圈 rubber apron for spinning machine；rubber joint used for weaving系用于纺纱机起牵伸作用的橡胶配件，又称牵伸皮圈。圆筒形，由内、外胶层和增强层三部分组成，增强层一般由螺旋形棉线和锦纶线组成。分上下胶圈，一般成对使用。按用途分棉纺胶圈、毛纺胶圈和化纤纺纱胶圈。根据所接触的金属及纤维,
