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  • Letter
  • Open Access

Five-terminal quantized transconductance originating from symmetric quantum fluctuations

K. Mertiri and Yuli V. Nazarov

Phys. Rev. B 114, L231113 – Published 26 October, 2026

DOI: https://doi.org/10.1103/cbt5-xjgb

Abstract

We consider the renormalization of transport in a quantum contact by the external electromagnetic environment and show that weak quantum fluctuations from a symmetric environment can lead to a quantized transconductance in five-terminal contacts. This mechanism does not work for fewer terminals. We present an implementation of the environment and investigate several example quantum contacts where the quantization takes place.

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