Benjamin Roussel
Advanced Concepts Team
22 Papers
94 Citations
Benjamin Roussel is an academic researcher from Advanced Concepts Team. The author has contributed to research in topics: Electron & Quantum optics. The author has an hindex of 8, co-authored 18 publications. Previous affiliations of Benjamin Roussel include École normale supérieure de Lyon & European Space Research and Technology Centre.
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Papers
Real-Time Decoherence of Landau and Levitov Quasiparticles in Quantum Hall Edge Channels
Dario Ferraro,Dario Ferraro,Dario Ferraro,Benjamin Roussel,Clément Cabart,Etienne Thibierge,Gwendal Fève,Charles Grenier,Pascal Degiovanni +8 more
TL;DR: It is shown that the Landau excitation exhibits a fast relaxation followed by spin-charge separation whereas the Levitov excitation only experiences spin- charge separation.
Quantum tomography of electrical currents
R. Bisognin,Arthur Marguerite,Benjamin Roussel,Benjamin Roussel,Manohar Kumar,C. Cabart,Camille Chapdelaine,Ali Mohammad-Djafari,Jean-Marc Berroir,Erwann Bocquillon,Bernard Plaçais,Antonella Cavanna,Ulf Gennser,Yong Jin,Pascal Degiovanni,Gwendal Fève +15 more
TL;DR: A quantum tomography protocol is developed and demonstrated which extracts the generated electron and hole wavefunctions and their emission probabilities from any electrical current and combines two-particle interferometry with signal processing.
Electron quantum optics as quantum signal processing
TL;DR: In this paper, the relations between electron quantum optics and signal processing were explored through a global review of the various methods for accessing single and two-electron coherences in quantum quantum optics.
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Quantum tomography of electrical currents.
R. Bisognin,Arthur Marguerite,Benjamin Roussel,Benjamin Roussel,Manohar Kumar,C. Cabart,Camille Chapdelaine,Ali Mohammad-Djafari,Jean-Marc Berroir,Erwann Bocquillon,Bernard Plaçais,Antonella Cavanna,Ulf Gennser,Yong Jin,Pascal Degiovanni,Gwendal Fève +15 more
TL;DR: In this article, a quantum tomography protocol was proposed to extract electron and hole wavefunctions and their emission probabilities from a train of Lorentzian pulses carrying one or two electrons.
Processing Quantum Signals Carried by Electrical Currents
Benjamin Roussel,Benjamin Roussel,C. Cabart,Gwendal Fève,Pascal Degiovanni +4 more
- 04 May 2021
TL;DR: In this article, a general signal processing algorithm is proposed to extract the elementary single-particle states, called electronic atoms of signal, present in any periodic quantum electrical current, which describe the excess single-electron coherence in the same way musical notes and score describe a sound signal emitted by a music instrument.
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