Photon-assisted electron-hole shot noise in multi-terminal conductors

Details Photon-assisted electron-hole shot noise in multi-terminal conductors Photon-assisted electron-hole shot noise in multi-terminal conductors

2005-07-12

arxiv.org/abs/cond-mat/0507276v2

Phys. Rev. B 72, 155326 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

10 pages, 4 figures. v2: minor changes, refences updated

Scientific paper

10.1103/PhysRevB.72.155326

Motivated by a recent experiment by L.-H. Reydellet et al., Phys. Rev. Lett. 90, 176803 (2003), we discuss an interpretation of photon-assisted shot noise in mesoscopic multiprobe conductors in terms of electron-hole pair excitations. AC-voltages are applied to the contacts of the sample. Of interest are correlations resulting from the fact that electrons and holes are generated in pairs. We show that with two out-of-phase ac-potentials of equal magnitude and frequency, applied to different contacts, it is possible to trace out the Hanbury Brown Twiss exchange interference correlations in a four probe conductor. We calculate the distribution of Hanbury Brown Twiss phases for a four-probe single channel chaotic dot.

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