Interpretation of thermal conductance of the v=5/2 edge

Article

关键词: QUANTUM HALL;    HEAT-FLOW;    TRANSPORT;    STATES;   

DOI  :  10.1103/PhysRevB.97.121406

来源: SCIE

【 摘 要 】

Recent experiments [Banerjee et al., arXiv:1710.00492] have measured thermal conductance of the v = 5/2 edge in a GaAs electron gas and found it to be quantized as K approximate to 5/2 ( in appropriate dimensionless units). This result is unexpected, as prior numerical work predicts that the v = 5/2 state should be the anti-Pfaffian phase of matter, which should have quantized K = 3/2. The purpose of this Rapid Communication is to propose a possible solution to this conflict: If the Majorana edge mode of the anti-Pfaffian does not thermally equilibrate with the other edge modes, then K = 5/2 is expected. I briefly discuss a possible reason for this nonequilibration and what should be examined further to determine if this is the case.

【 授权许可】

Free