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arXiv 0710.4071cond-mat.mes-hall
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现实量子Hall波函数的拓扑熵

Topological entropy of realistic quantum Hall wave functions

B. A. Friedman, G. C. Levine

摘要:

利用直接对角化方法研究了实际量子Hall系统不可压缩态的纠缠熵。在填充因子为1/3,1/5和5/2时,提取了面积定律的次优势项--拓扑纠缠熵,它被认为携带了关于基态中拓扑序的信息. 1/3和1/5的结果与Laughlin波函数的拓扑纠缠熵一致。5/2态的拓扑纠缠熵与Moore-Read波函数一致。

英文摘要:

The entanglement entropy of the incompressible states of a realistic quantum Hall system are studied by direct diagonalization. The subdominant term to the area law, the topological entanglement entropy, which is believed to carry information about topologic order in the ground state, was extracted for filling factors 1/3, 1/5 and 5/2. The results for 1/3 and 1/5 are consistent with the topological entanglement entropy for the Laughlin wave function. The 5/2 state exhibits a topological entanglement entropy consistent with the Moore-Read wave function.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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