On Quantum Communication Channels with Constrained Inputs

Details On Quantum Communication Channels with Constrained Inputs On Quantum Communication Channels with Constrained Inputs

1997-05-30

arxiv.org/abs/quant-ph/9705054v1

Physics

Quantum Physics

17 pages, latex209

Scientific paper

The purpose of this work is to extend the result of previous papers quant-ph/9611023, quant-ph/9703013 to quantum channels with additive constraints onto the input signal, by showing that the capacity of such channel is equal to the supremum of the entropy bound with respect to all apriori distributions satisfying the constraint. We also make an extension to channels with continuous alphabet. As an application we prove the formula for the capacity of the quantum Gaussian channel with constrained energy of the signal, establishing the asymptotic equivalence of this channel to the semiclassical photon channel. We also study the lower bounds for the reliability function of the pure-state Gaussian channel.

Affiliated with

Also associated with

No associations

Rating

On Quantum Communication Channels with Constrained Inputs 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 On Quantum Communication Channels with Constrained Inputs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On Quantum Communication Channels with Constrained Inputs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-374189