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Phys. Rev. B 66, 233304 (2002) [4 pages]

Shot noise of series quantum point contacts intercalating chaotic cavities

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S. Oberholzer1 *, E. V. Sukhorukov2, C. Strunk3, and C. Schönenberger1
1University of Basel, Klingelbergstr. 82, 4056 Basel, Switzerland
2University of Geneva, 24, quai Ernest Ansermet, 1211 Geneve 4, Switzerland
3University of Regensburg, D-93040 Regensburg, Germany

Received 11 June 2002; published 6 December 2002

Shot noise of series quantum point contacts forming a sequence of cavities in a two-dimensional electron gas are studied theoretically and experimentally. Noise in such a structure originates from local scattering at the point contacts as well as from chaotic motion of the electrons in the cavities. We found that the measured shot noise is in reasonable agreement with our theoretical prediction taking the cavity noise into account.


©2002 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevB.66.233304
DOI: 10.1103/PhysRevB.66.233304
PACS: 73.23.Ad, 72.70.+m, 73.50.Td

* Present address: Delft University of Technology, PO Box 5046, 2600 GA Delft, The Netherlands.

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