Optimization of Quantum Information Processing Maximizing Mutual Information

Physics – Quantum Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

9 pages. Quantum Information more than 30 years ago. See more at http://www.maths.nott.ac.uk/personal/vpb/vpb_research.html

Scientific paper

A model of quantum noisy channel with input encoding by a classical random vector is described. An equation of optimality is derived to determine a complete set of wave functions describing quantum decodings based on quasi-measurements maximizing the classical amount of transmitted information. A solution of this equation is found for the Gaussian multimode case with input Gaussian distribution. It is described by the overcomplete family of coherent vectors describing an optimal quasimeasurement of the canonical annihilation amplitudes in the output Hilbert space. It is found that the optimal decoding in this case realizes the maximum amount I=Spln[1+S/(N+1)] of the classical information as transmitted via the classical Gaussian channel with the effective noise covariance matrix N+I. A physical realization of optimal quasi-measurement based on an indirect (heterodyne) observation of the canonical operators is suggested.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Optimization of Quantum Information Processing Maximizing Mutual Information 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 Optimization of Quantum Information Processing Maximizing Mutual Information, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optimization of Quantum Information Processing Maximizing Mutual Information will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-419334

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.