Auflistung nach Autor/in "baa0213b-832c-4fc5-8901-67ef836b0bcc"

Auflistung nach Autor/in "baa0213b-832c-4fc5-8901-67ef836b0bcc"

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  • Bimodal counting statistics in single-electron tunneling through a quantum dot 
    Fricke, Christian; Hohls, Frank; Wegscheider, W.; Haug, Rolf J. (College Park, MD : American Physical Society, 2007)
    We explore the full counting statistics of single-electron tunneling through a quantum dot using a quantum point contact as noninvasive high bandwidth charge detector. The distribution of counted tunneling events is measured ...
  • Coupling symmetry of quantum dot states 
    Rogge, M.C.; Harke, B.; Fricke, Christian; Hohls, Frank; Reinwald, M.; Wegscheider, W.; Haug, Rolf J. (College Park, MD : American Physical Society, 2005)
    With noninvasive methods, we investigate ground and excited states of a lateral quantum dot. Charge detection via a quantum point contact is used to map the dot dynamics in a regime where the current through the dot is too ...
  • High-order cumulants in the counting statistics of asymmetric quantum dots 
    Fricke, Christian; Hohls, Frank; Sethubalasubramanian, Nandhavel; Fricke, Lukas; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2010)
    Measurements of single electron tunneling through a quantum dot (QD) using a quantum point contact as charge detector have been performed for very long time traces with very large event counts. This large statistical basis ...
  • Measurement of finite-frequency current statistics in a single-electron transistor 
    Ubbelohde, Niels; Fricke, Christian; Flindt, Christian; Hohls, Frank; Haug, Rolf J. (Lausanne : Frontiers Research Foundation, 2012-01)
    Electron transport in nanoscale structures is strongly influenced by the Coulomb interaction that gives rise to correlations in the stream of charges and leaves clear fingerprints in the fluctuations of the electrical ...
  • Noninvasive detection of charge rearrangement in a quantum dot 
    Fricke, Christian; Rogge, M.C.; Harke, B.; Reinwald, M.; Wegscheider, W.; Hohls, Frank; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2007)
    We demonstrate new results on electron redistribution on a single quantum dot caused by magnetic field. A quantum point contact is used to detect changes in the quantum dot charge. We are able to measure both the change ...
  • Noninvasive detection of charge rearrangement in a quantum dot in high magnetic fields 
    Fricke, Christian; Rogge, M.C.; Harke, B.; Reinwald, M.; Wegscheider, W.; Hohls, Frank; Haug, Rolf J. (College Park, MD : American Physical Society, 2005)
    We demonstrate electron redistribution caused by magnetic field on a single quantum dot measured by means of a quantum point contact as noninvasive detector. Our device, which is fabricated by local anodic oxidation, allows ...
  • Der Quantenpunktkontakt als Ladungsdetektor in der Transportspektroskopie 
    Fricke, Christian (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2009)
    [no abstract]
  • Single electron counting statistics for atto-Ampere currents through a semiconductor quantum dot 
    Hohls, Frank; Fricke, Christian; Wegscheider, W.; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2007)
    We have implemented single electron counting for the tunneling current through a quantum dot. This allows us to study in detail the dynamics of transport. For certain settings of the gate and bias voltage we observe bimodal ...
  • Spin-dependent shot noise enhancement in a quantum dot 
    Ubbelohde, Niels; Fricke, Christian; Hohls, Frank; Haug, Rolf J. (College Park, MD : American Physical Society, 2013)
    The spin-dependent dynamical blockade was investigated in a lateral quantum dot in a magnetic field. Spin-polarized edge channels in the two-dimensional leads and the spatial distribution of Landau orbitals in the dot ...
  • Transport through a quantum dot analyzed by electron counting 
    Fricke, Christian; Hohls, Frank; Sethubalasubramanian, Nandhavel; Fricke, Lukas; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2011)
    We present measurements of single electron tunneling through a quantum dot (QD) using a quantum point contact as charge detector. The counting statistics for varying symmetry of the QD system is examined from a very large ...
  • Universal oscillations of high-order cumulants 
    Flindt, Christian; Fricke, Christian; Hohls, Frank; Novotny, Tomas; Netocny, Karel; Brandes, Tobias; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2009)
    We discuss our recent measurement of high-order cumidants of charge transport through a quantum dot. The cumulants were found to oscillate as functions of measurement time before reaching their linear-in-time asymptotics. ...