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EQUO: Electronic quantum optics, channel edge, quantum Hall effect - Gwendal Bean

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Marie Pinhas-Diena, in charge of scientific communications l tel: +33 (0)1 44 27 22 89 l email: marie.pinhas@upmc.fr

Project "Equo": electronic quantum optics in the channel edge of the quantum Hall effect, Gwendal Bean

The transport of electrons in the nano-conductors at very low temperatures has many similarities with the photon transport in a vacuum. These similarities enable the manipulation of quantum states in an electron in the electronic quantum optics experiments, which, unlike photons, are enriched by the Coulomb interaction effects. The objective of this project is to study the emergence of interaction effects on the propagation of a single electron that lead to its dissolution in a collective excitation bath. This study will enable the visualization and better understanding of the scenario of birth, life and death of a single electron during its propagation in a conductor. The regime of strong electronic correlations, for which the elementary excitations of the driver are no longer electrons but quasiparticles with a fractional charge, will also be addressed. The objective will be to use the devices of the electronic quantum optics to manipulate elementary quasi-particles and probe their fractional statistics.


Gwendal Bean studying electron transport in nano-circuits at very low temperatures. During his thesis (defended in 2006) in the mesoscopic physics group of the Pierre Aigrain Laboratory, he created an electronic source, similar to single photon sources in optics, to trigger the emission of a single electron in a conductor. He then completed a fellowship in 2007 to photonics lab and nanostructures on Cooper pairs of injection in two-dimensional electron gas. Working at the Pierre Aigrain Laboratory since 2008, he has studied electronic quantum optics in the similarities and differences between transport of electrons and photons. He has been a junior member of the University Institute of France since 2014


The Pierre Aigrain Laboratory (LPA, CNR/SENS Paris/UPMC/Université Paris Diderot)Nouvelle fenêtre (in English or French)