Role of scaling dimensions in generalized noises in fractional quantum Hall tunneling due to a temperature bias
Journal article, 2025

Continued improvement of heat control in mesoscopic conductors brings novel tools for probing strongly correlated electron phenomena. Motivated by these advances, we comprehensively study transport due to a temperature bias in a quantum point contact device in the fractional quantum Hall regime. We compute the charge-current noise (so-called delta-T noise), heat-current noise, and mixed noise and elucidate how these observables can be used to infer strongly correlated properties of the device. Our main focus is the extraction of so-called scaling dimensions of the tunneling anyonic quasiparticles, of critical importance to correctly infer their anyonic exchange statistics.

Author

Matteo Acciai

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Scuola Internazionale Superiore di Studi Avanzati

Gu Zhang

Beijing Academy of Quantum Information Sciences

Christian Spånslätt Rugarn

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Karlstad University

Published in

SciPost Physics

25424653 (eISSN)

Vol. 18 Issue 2 art. no 058

Research Project(s)

ThErmAl Probes Of fractional quantum hall Transport (TEAPOT)

European Commission (EC) (EC/H2020/101031655), 2022-01-01 -- 2023-12-31.

Categorizing

Areas of Advance

Nanoscience and Nanotechnology

Subject Categories (SSIF 2025)

Condensed Matter Physics

Identifiers

DOI

10.21468/SciPostPhys.18.2.058

More information

Latest update

3/14/2025