Absent thermal equilibration on fractional quantum Hall edges over macroscopic scale

• Published in: Nature communications Vol. 13; no. 1; pp. 376 - 7
• Main Authors: Melcer, Ron Aharon, Dutta, Bivas, Spånslätt, Christian, Park, Jinhong, Mirlin, Alexander D., Umansky, Vladimir
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 19.01.2022; Nature Publishing Group; Nature Portfolio
• Subjects: 639/301/119/2792; 639/766/119/2794; Balancing; Conductance; Heat; Heat transfer; Heat transport; Humanities and Social Sciences; Magnetic fields; Measurement techniques; multidisciplinary; Noise measurement; Propagation modes; Science; Science (multidisciplinary); Strong interactions (field theory); Thermal conductivity; Thermal properties; Thermodynamic properties; Topological insulators; Transport phenomena

Two-dimensional topological insulators, and in particular quantum Hall states, are characterized by an insulating bulk and a conducting edge. Fractional states may host both downstream (dictated by the magnetic field) and upstream propagating edge modes, which leads to complex transport behavior. He...