Influence of channel mixing in fermionic Hong-Ou-Mandel experiments
Artikel i vetenskaplig tidskrift, 2022

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.


Matteo Acciai

Chalmers, Mikroteknologi och nanovetenskap, Tillämpad kvantfysik

Preden Roulleau

Université Paris-Saclay

Imen Taktak

Université Paris-Saclay

D. Christian Glattli

Université Paris-Saclay

Janine Splettstoesser

Chalmers, Mikroteknologi och nanovetenskap, Tillämpad kvantfysik

Physical Review B

24699950 (ISSN) 24699969 (eISSN)

Vol. 105 12 125415

Capturing quantum dynamics on the picosecond scale (UltraFastNano)

Europeiska kommissionen (EU) (EC/H2020/862683), 2020-01-01 -- 2023-12-31.


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