We consider an electronic Hong-Ou-Mandel interferometer in the integer quantum Hall regime, where the colliding electronic states are generated by applying voltage pulses (creating for instance levitons) to ohmic contacts. The aim of this work is to investigate possible mechanisms leading to a reduced visibility of the Pauli dip, i.e., the noise suppression expected for synchronized sources. It is known that electron-electron interactions cannot account for this effect and always lead to a full suppression of the Hong-Ou-Mandel noise. Focusing on the case of filling factor ?=2, we show instead that a reduced visibility of the Pauli dip can result from mixing of the copropagating edge channels, arising from tunneling events between them.

Influence of channel mixing in fermionic Hong-Ou-Mandel experiments / Acciai, M.; Roulleau, P.; Taktak, I.; Glattli, D. C.; Splettstoesser, J.. - In: PHYSICAL REVIEW. B. - ISSN 2469-9950. - 105:12(2022). [10.1103/PhysRevB.105.125415]

Influence of channel mixing in fermionic Hong-Ou-Mandel experiments

Acciai M.;
2022-01-01

Abstract

We consider an electronic Hong-Ou-Mandel interferometer in the integer quantum Hall regime, where the colliding electronic states are generated by applying voltage pulses (creating for instance levitons) to ohmic contacts. The aim of this work is to investigate possible mechanisms leading to a reduced visibility of the Pauli dip, i.e., the noise suppression expected for synchronized sources. It is known that electron-electron interactions cannot account for this effect and always lead to a full suppression of the Hong-Ou-Mandel noise. Focusing on the case of filling factor ?=2, we show instead that a reduced visibility of the Pauli dip can result from mixing of the copropagating edge channels, arising from tunneling events between them.
2022
105
12
125415
10.1103/PhysRevB.105.125415
https://arxiv.org/abs/2201.06833
Acciai, M.; Roulleau, P.; Taktak, I.; Glattli, D. C.; Splettstoesser, J.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/137933
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