Dephasing in a quantum dot due to coupling with a quantum point contact
Weizmann Institute of Science - 76100 Rehovot, Israel
Accepted: 19 June 1997
We consider the dephasing of an one-electron state in a quantum dot due to charge fluctuations in a biased quantum point contact coupled to the dot capacitively. The contribution to the dephasing rate due to the bias depends on temperature and bias in the same way as shot-noise in the point contact at zero frequency, but do not follow the suppression.
PACS: 73.23.-b – Mesoscopic systems / 72.10.-d – Theory of electronic transport; scattering mechanisms
© EDP Sciences, 1997