Topological quantum phase transition in an exactly solvable model of a chiral spin liquid at finite temperature
Topological quantum phase transition in an exactly solvable model of a chiral spin liquid at finite temperature
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有限温度下手性自旋液体精确可解模型中的拓扑量子相变
DOI：
10.1103/physrevb.81.060403
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发表时间：
2010
影响因子：
3.7
通讯作者：
Eun
中科院分区：
文献类型：
--
作者：
S. Chung;H. Yao;T. Hughes;Eun
我们研究了手性自旋液体的精确可解模型中阿贝尔拓扑相和非阿贝尔拓扑相之间的量子相变的有限温度性质。凭借精确的可解性，该模型可以作为开发更好的方法来描述拓扑量子相变的测试平台。我们用全局通量和纠缠熵来描述这种相变，并讨论在有限温度下在多大程度上揭示了具有非阿贝尔激发的拓扑有序基态的存在。
We study the finite temperature nature of a quantum phase transition between an Abelian and a non-Abelian topological phase in an exactly solvable model of a chiral spin liquid. By virtue of the exact solvability, this model can serve as a testbed for developing better measures for describing topological quantum phase transitions. We characterize this phase transition in terms of the global flux and entanglement entropy, and discuss to what extent the existence of a topologically ordered ground state with non-Abelian excitations is revealed at finite temperature.