Proposal for non-local electron-hole turnstile in the Quantum Hall regime

TL;DR

This paper proposes a theoretical design for a mesoscopic device in the quantum Hall regime that can reliably generate separate streams of electrons and holes with minimal charge fluctuations per cycle.

Contribution

It introduces a non-local electron-hole turnstile model that operates effectively in the non-adiabatic regime, achieving high accuracy in charge transfer.

Findings

Turnstile produces one electron and one hole per cycle in ideal conditions.

Charge transfer fluctuations are negligibly small in the ideal regime.

Operation remains effective across a broad frequency range.

Abstract

We present a theory for a mesoscopic turnstile that produces spatially separated streams of electrons and holes along edge states in the quantum Hall regime. For a broad range of frequencies in the non-adiabatic regime the turnstile operation is found to be ideal, producing one electron and one hole per cycle. The accuracy of the turnstile operation is characterized by the fluctuations of the transferred charge per cycle. The fluctuations are found to be negligibly small in the ideal regime.