Electron counting with a two-particle emitter

Details Electron counting with a two-particle emitter Electron counting with a two-particle emitter

2008-06-26

arxiv.org/abs/0806.4336v2

Phys. Rev. B 78, 205110 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 3 figures, published in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.78.205110

We consider two driven cavities (capacitors) connected in series via an edge state. The cavities are driven such that they emit an electron and a hole in each cycle. Depending on the phase lag the second cavity can effectively absorb the carriers emitted by the first cavity and nullify the total current or the set-up can be made to work as a two-particle emitter. We examine the precision with which the current can be nullified and with which the second cavity effectively counts the particles emitted by the first one. To achieve single-particle detection we examine pulsed cavities.

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