Erwann Bocquillon, Vincent Freulon, François D. Parmentier, Jean-Marc Berroir, Bernard Plaçais, Claire Wahl, Jérome Rech, Thibaut Jonckheere, Thierry Martin, Charles Grenier, Dario Ferraro, Pascal Degiovanni and Gwendal Fève Electron quantum optics in ballistic chiral conductors Annalen der Physik 526
Article first published online: 4 DEC 2013 | DOI: 10.1002/andp.201300181
The edge channels of the quantum Hall effect provide one dimensional chiral and ballistic wires along which electrons can be guided in optics like setup. Electronic propagation can then be analyzed using concepts and tools derived from optics. After a brief review of electron optics experiments performed using stationary current sources which continuously emit electrons in the conductor, this paper focuses on triggered sources, which can generate on-demand a single particle state. It first outlines the electron optics formalism and its analogies and differences with photon optics and then turns to the presentation of single electron emitters and their characterization through the measurements of the average electrical current and its correlations. This is followed by a discussion of electron quantum optics experiments in the Hanbury-Brown and Twiss geometry where two-particle interferences occur. Finally, Coulomb interactions effects and their influence on single electron states are considered.
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