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arXiv · 2408.04525

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

Matteo Acciai·Gu Zhang·Christian Spånslätt
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Abstract

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.

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Matteo Acciai, Gu Zhang, Christian Spånslätt. 2026-02-03. Role of scaling dimensions in generalized noises in fractional quantum Hall tunneling due to a temperature bias. https://doi.org/10.21468/scipostphys.18.2.058

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