On the Sufficient Optimality Condition for Quantum Information Processing
Quantum Physics
2007-05-23 v1
Abstract
The necessary and sufficient conditions of optimality of the decoding of quantum signals minimizing the Bayesian risk are generalized for the Shannon mutual information criteria. It is shown that for a linear channel with Gaussian boson noise these conditions are satisfied by coherent quasi-measurement of the canonical annihilation amplitudes in the received superposition.
Cite
@article{arxiv.quant-ph/0511043,
title = {On the Sufficient Optimality Condition for Quantum Information Processing},
author = {V. P. Belavkin and A. G. Vantsyan},
journal= {arXiv preprint arXiv:quant-ph/0511043},
year = {2007}
}
Comments
6 pages. An addition to quant-ph/0511042