Thermoelectric Hall conductivity of fractional quantum Hall systems on a disk

被引:2
|
作者
Fang, Zi-Yi [1 ]
Ye, Dan [1 ]
Zhang, Yu-Yu [1 ,2 ]
Hu, Zi-Xiang [1 ,2 ]
机构
[1] Chongqing Univ, Dept Phys, Chongqing 401331, Peoples R China
[2] Chongqing Key Lab Strongly Coupled Phys, Chongqing 401331, Peoples R China
基金
中国国家自然科学基金;
关键词
FLUID;
D O I
10.1103/PhysRevB.103.235161
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
For fractional quantum Hall states on a finite disk, we study the thermoelectric transport properties under the influence of the presence of an edge and its reconstruction. In a recent study on a torus [Phys. Rev. B 101, 241101(R) (2020)], Sheng and Fu found a universal non-Fermi liquid power-law scaling of the thermoelectric conductivity alpha(xy) alpha T-eta a Pi for the gapless composite Fermi liquid state. The exponent eta similar to 0.5 appears an independence of the filling factors and the details of the interactions. In the presence of an edge, we find the properties of the edge spectrum dominants the low-temperature behaviors and a nonuniversal scaling behavior in low temperature is observed. To consider individually the effect of the edge states, the real space entanglement spectrum of the model wave function, which contains only the spectrum of edge excitation is employed. Its spectrum energies could be tuned by varying the radius of the subsystem. In the non-Abelian Moore-Read state, the Majorana neutral edge mode is found to have more significant effects than that of the charge mode in the low temperature.
引用
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页数:6
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