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EQuO SIGNED

Electron Quantum optics in quantum Hall edge channels

Total Cost €

EC-Contrib. €

Partnership

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Outcomes and
results

EQuO project word cloud

Explore the words cloud of the EQuO project. It provides you a very rough idea of what is the project "EQuO" about.

manipulating last few explored experiments electrons description propagating half particle observe fundamental interacting statistics birth propagation mere correlated nanophysics regime analog fermions pioneer elementary differ emission tests emitters generation entangled attempt initializes mechanics death quasiparticle firstly reported purpose secondly century excitation fractional realized situation ground motivations electronic quasiparticles replacing ou photons interactions manipulation beams charge longer setups quantum obey scenarii brown opportunity hanbury carry excitations nanostructures goes electron mandel hong single life explore coherent context body twiss manipulated physics optics optical elusive itself emergence contrary landau photon reproduction translate

Project "EQuO" data sheet

The following table provides information about the project.

Coordinator	CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS Organization address address: RUE MICHEL ANGE 3 city: PARIS postcode: 75794 website: www.cnrs.fr contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.
Coordinator Country	France [FR]
Total cost	1˙997˙878 €
EC max contribution	1˙997˙878 € (100%)
Programme	1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
Code Call	ERC-2014-CoG
Funding Scheme	ERC-COG
Starting year	2015
Duration (year-month-day)	from 2015-10-01 to 2021-09-30

Partnership

Take a look of project's partnership.

#	participants	country	role	EC contrib. [€]
1	CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS Organization address address: RUE MICHEL ANGE 3 city: PARIS postcode: 75794 website: www.cnrs.fr contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	FR (PARIS)	coordinator	1˙997˙878.00

Map

Project objective

Quantum effects have been studied on photon propagation in the context of quantum optics since the second half of the last century. In particular, using single photon emitters, fundamental tests of quantum mechanics were explored by manipulating single to few photons in Hanbury-Brown and Twiss and Hong Ou Mandel experiments. In nanophysics, there is a growing interest to translate these concepts of quantum optics to electrons propagating in nanostructures. Single electron emitters have been realized such that single elementary electronic excitations can now be manipulated in the analog of pioneer quantum optics experiments. Electron quantum optics goes beyond the mere reproduction of optical setups using electron beams, as electrons, being interacting fermions, differ strongly from photons. Contrary to optics, understanding the propagation of an elementary excitation requires replacing the single body description by a many body one. The purpose of this proposal is to specifically explore the emergence of many body physics and its effects on electronic propagation using the setups and concepts of electron quantum optics. The motivations are numerous: firstly single particle emission initializes a simple and well controlled state. I will take this unique opportunity to test birth, life and death scenarii of Landau quasiparticles and observe the emergence of many-body physics. Secondly, I will address the generation of entangled few electrons quantum coherent states and study how they are affected by interactions. Finally, I will attempt to apply electron quantum optics concepts to a regime where the ground state itself is a strongly correlated state of matter. In such a situation, elementary excitations are no longer electrons but carry a fractional charge and obey fractional statistics. No manipulation of single quasiparticles has been reported yet and the determination of some quasiparticle characteristics, such as the fractional statistics remains elusive.

Publications

List of publications.
year	authors and title	journal	last update
2018	Maciej Misiorny, Gwendal FÃ¨ve, Janine Splettstoesser Shaping charge excitations in chiral edge states with a time-dependent gate voltage published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.97.075426	Physical Review B 97/7	2019-09-17
2017	A. Marguerite, E. Bocquillon, J.-M. Berroir, B. PlaÃ§ais, A. Cavanna, Y. Jin, P. Degiovanni, G. FÃ¨ve Two-particle interferometry in quantum Hall edge channels published pages: 1600618, ISSN: 0370-1972, DOI: 10.1002/pssb.201600618	physica status solidi (b) 254/3	2019-09-17
2017	B. Roussel, C. Cabart, G. F?ve, E. Thibierge, P. Degiovanni Electron quantum optics as quantum signal processing published pages: 1600621, ISSN: 0370-1972, DOI: 10.1002/pssb.201600621	physica status solidi (b) 254/3	2019-09-17
2016	A. Marguerite, C. Cabart, C. Wahl, B. Roussel, V. Freulon, D. Ferraro, Ch. Grenier, J.-M. Berroir, B. Pla?ais, T. Jonckheere, J. Rech, T. Martin, P. Degiovanni, A. Cavanna, Y. Jin, G. F?ve Decoherence and relaxation of a single electron in a one-dimensional conductor published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.94.115311	Physical Review B 94/11	2019-09-17

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The information about "EQUO" are provided by the European Opendata Portal: CORDIS opendata.