Single electron quantum tomography in quantum Hall edge channels

Details Single electron quantum tomography in quantum Hall edge channels Single electron quantum tomography in quantum Hall edge channels

2010-10-11

arxiv.org/abs/1010.2166v3

New Journal of Physics 13, 093007 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Version 3: long version (7 figures): corrections performed and references have been added. Figures reprocessed for better read

Scientific paper

10.1088/1367-2630/13/9/093007

We propose a quantum tomography protocol to measure single electron coherence in quantum Hall edge channels and therefore access for the first time the wave function of single electron excitations propagating in ballistic quantum conductors. Its implementation would open the way to quantitative studies of single electron decoherence and would provide a quantitative tool for analyzing single to few electron sources. We show how this protocol could be implemented using ultrahigh sensitivity noise measurement schemes.

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