S. Gustavsson, R. Leturcq, B. Simovic, R. Schleser, T. Ihn, P. Studerus, K. Ensslin, D. C. Driscoll, A. C. Gossard
Published 2005-10-11, updated 2006-03-02Version 3
We have measured the full counting statistics (FCS) of current fluctuations in a semiconductor quantum dot (QD) by real-time detection of single electron tunneling with a quantum point contact (QPC). This method gives direct access to the distribution function of current fluctuations. Suppression of the second moment (related to the shot noise) and the third moment (related to the asymmetry of the distribution) in a tunable semiconductor QD is demonstrated experimentally. With this method we demonstrate the ability to measure very low current and noise levels.
Journal: Phys. Rev. Lett. 96, 076605 (2006)
Charge Fluctuations in Quantum Point Contacts and Chaotic Cavities in the Presence of Transport
Conductance of a quantum point contact in the presence of spin-orbit interaction
Conductance of a quantum point contact based on spin-density-functional theory
