Electron Quantum Optics: Partitioning Electrons One by One
Erwann Bocquillon,François Parmentier,Charles Grenier,Jean-Marc Berroir,Pascal Degiovanni,D. C. Glattli,Bernard Plaçais,Antonella Cavanna,Yong Jin,Gwendal Fève +9 more
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TLDR
In this paper, the authors realized a quantum optics like Hanbury Brown-Twiss (HBT) experiment by partitioning, on an electronic beam splitter, single elementary electronic excitations produced one by one by an on-demand emitter.Abstract:
We have realized a quantum optics like Hanbury Brown--Twiss (HBT) experiment by partitioning, on an electronic beam splitter, single elementary electronic excitations produced one by one by an on-demand emitter. We show that the measurement of the output currents correlations in the HBT geometry provides a direct counting, at the single charge level, of the elementary excitations (electron-hole pairs) generated by the emitter at each cycle. We observe the antibunching of low energy excitations emitted by the source with thermal excitations of the Fermi sea already present in the input leads of the splitter, which suppresses their contribution to the partition noise. This effect is used to probe the energy distribution of the emitted wave packets.read more
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Journal ArticleDOI
Coherence and Indistinguishability of Single Electrons Emitted by Independent Sources
Erwann Bocquillon,Vincent Freulon,Jean-Marc Berroir,Pascal Degiovanni,Bernard Plaçais,Antonella Cavanna,Yong Jin,Gwendal Fève +7 more
TL;DR: The demonstration of two-Electron interference provides the possibility of manipulating coherent and indistinguishable single-electron wave packets in quantum conductors.
Journal ArticleDOI
Single-electron current sources: Toward a refined definition of the ampere
Jukka P. Pekola,Olli-Pentti Saira,Ville F. Maisi,Antti Kemppinen,Mikko Möttönen,Yuri Pashkin,Dmitri V. Averin +6 more
TL;DR: In this article, a review of the physical and technical constraints that influence single-electron charge transport is presented, and a broad variety of proposed realizations are presented, some of them have already proven experimentally to nearly fulfill the demanding needs, in terms of transfer errors and transfer rate, of quantum metrology of electrical quantities, whereas some others are currently "just" wild ideas, still often potentially competitive if technical constraints can be lifted.
Journal ArticleDOI
Electron quantum optics in ballistic chiral conductors
Erwann Bocquillon,Vincent Freulon,François Parmentier,Jean-Marc Berroir,Bernard Plaçais,C. Wahl,Jérôme Rech,Thibaut Jonckheere,Thierry Martin,Charles Grenier,Dario Ferraro,Pascal Degiovanni,Gwendal Fève +12 more
TL;DR: In this paper, a review of electron optics experiments performed using stationary current sources which continuously emit electrons in the conductor is presented, and the authors focus on triggered sources, which can generate on-demand a single particle state.
Journal ArticleDOI
Separation of neutral and charge modes in one-dimensional chiral edge channels
Erwann Bocquillon,Vincent Freulon,Jean-Marc Berroir,Pascal Degiovanni,Bernard Plaçais,Antonella Cavanna,Yong Jin,Gwendal Fève +7 more
TL;DR: The direct observation of the collective neutral and charge modes of the two chiral co-propagating edge channels of opposite spins of the quantum Hall effect at filling factor 2 is reported.
Journal ArticleDOI
Partitioning of on-demand electron pairs.
Niels Ubbelohde,Frank Hohls,Vyacheslavs Kashcheyevs,Timo Wagner,Lukas Fricke,Bernd Kästner,Klaus Pierz,Hans Werner Schumacher,Rolf J. Haug +8 more
TL;DR: Cooper pairs impinging stochastically at a mesoscopic beamsplitter have been successfully partitioned, as verified by measuring the coincidence of arrival, which opens a path to future on-demand generation of spin-entangled electron pairs from a suitably prepared two-electron quantum-dot ground state.