Shot-noise at a Fermi-edge singularity: Non-Markovian dynamics

Journal Article · Wed Dec 04 00:00:00 EST 2013 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4848367· OSTI ID:22261793

Ubbelohde, N.; Maire, N.; Haug, R. J. ^[1]; Roszak, K. ^[2]; Hohls, F. ^[3]; Novotný, T. ^[4]

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1. Institut für Festkörperphysik, Leibniz Universität Hannover, Appelstraße 2, D-30167 Hannover (Germany)
2. Institute of Physics, Wrocław University of Technology, PL-50370 Wrocław (Poland)
3. Physikalisch-Technische Bundesanstalt, D-38116 Braunschweig (Germany)
4. Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, CZ-12116 Prague (Czech Republic)

For an InAs quantum dot we study the current shot noise at a Fermi-edge singularity in low temperature cross-correlation measurements. In the regime of the interaction effect the strong suppression of noise observed at zero magnetic field and the sequence of enhancement and suppression in magnetic field go beyond a Markovian master equation model. Qualitative and quantitative agreement can however be achieved by a generalized master equation model taking non-Markovian dynamics into account.

• OSTI ID: 22261793
• Journal Information: AIP Conference Proceedings, Vol. 1566, Issue 1; Conference: ICPS 2012: 31. international conference on the physics of semiconductors, Zurich (Switzerland), 29 Jul - 3 Aug 2012; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
77 NANOSCIENCE AND NANOTECHNOLOGY
INDIUM ARSENIDES
INTERACTIONS
MAGNETIC FIELDS
QUANTUM DOTS
SEMICONDUCTOR MATERIALS