Full frequency voltage noise spectral density of a single electron transistor

Details Full frequency voltage noise spectral density of a single electron transistor Full frequency voltage noise spectral density of a single electron transistor

2002-11-04

arxiv.org/abs/cond-mat/0211055v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

14 pages, 18 figures, submitted to PRB

Scientific paper

We calculate the full frequency spectral density of voltage fluctuations in a Single Electron Transistor (SET), used as an electrometer biased above the Coulomb threshold so that the current through the SET is carried by sequential tunnel events. We consider both a normal state SET and a superconducting SET. The whole spectrum from low frequency telegraph noise to quantum noise at frequencies comparable to the SET charging energy $(E_{C}/\hbar)$, and high frequency Nyquist noise is described. We take the energy exchange between the SET and the measured system into account using a real-time diagrammatic Keldysh technique. The voltage fluctuations determine the back-action of the SET onto the measured system and we specifically discuss the case of superconducting charge qubit read-out and measuring the so-called Coulomb staircase of a single Cooper pair box.

Affiliated with

Also associated with

No associations

Rating

Full frequency voltage noise spectral density of a single electron transistor 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 Full frequency voltage noise spectral density of a single electron transistor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Full frequency voltage noise spectral density of a single electron transistor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-73594