Continuous quantum measurement with independent detector cross-correlations

Details Continuous quantum measurement with independent detector cross-correlations Continuous quantum measurement with independent detector cross-correlations

2005-05-02

arxiv.org/abs/cond-mat/0505044v1

Phys. Rev. Lett. 95, 220401 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.95.220401

We investigate the advantages of using two independent, linear detectors for continuous quantum measurement. For single-shot quantum measurement, the measurement is maximally efficient if the detectors are twins. For weak continuous measurement, cross-correlations allow a violation of the Korotkov-Averin bound for the detector's signal-to-noise ratio. A vanishing noise background provides a nontrivial test of ideal independent quantum detectors. We further investigate the correlations of non-commuting operators, and consider possible deviations from the independent detector model for mesoscopic conductors coupled by the screened Coulomb interaction.

Affiliated with

Also associated with

No associations

Rating

Continuous quantum measurement with independent detector cross-correlations 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 Continuous quantum measurement with independent detector cross-correlations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous quantum measurement with independent detector cross-correlations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-479613