Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2002-05-07
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
6 pages, 3 figures, Proccedings of International Symposium on Mesoscopic Superconductivity and Spintronics (MS+S2002)
Scientific paper
By using the Schwinger-Keldysh approach, we evaluate the current noise and the charge noise of the single-electron transistor (SET) in the regime of large charge fluctuations caused by large tunneling conductance. Our result interpolates between previous theories; the "orthodox" theory and the "co-tunneling theory". We find that the life-time broadening effect suppresses the Fano factor below the value estimated by the previous theories. We also show that the large tunnel conductance does not reduce the energy sensitivity so much. Our results demonstrate quantitatively that SET electrometer can be used as the high-sensitivity and high-speed device for quantum measurements.
Ebisawa Hiromichi
Hayashi Masahiko
Imamura Hiroshi
Utsumi Yasuhiro
No associations
LandOfFree
The current and the charge noise of a single-electron transistor in the regime of large charge fluctuations out of equilibrium does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The current and the charge noise of a single-electron transistor in the regime of large charge fluctuations out of equilibrium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The current and the charge noise of a single-electron transistor in the regime of large charge fluctuations out of equilibrium will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-658432