Two-sequential Conclusive Discrimination between Binary Coherent States via Indirect Measurements
Abstract
A general scenario for an -sequential conclusive state discrimination introduced recently in Loubenets and Namkung [arXiv:2102.04747] can provide a multipartite quantum communication realizable in the presence of a noise. In the present article, we propose a new experimental scheme for the implementation of a sequential conclusive discrimination between binary coherent states via indirect measurements within the Jaynes-Cummings interaction model. We find that if the mean photon number is less than 1.6, then, for our two-sequential state discrimination scheme, the optimal success probability is larger than the one presented in Fields, Varga, and Bergou [2020, IEEE Int. Conf. Quant. Eng. Comp.]. We also show that, if the mean photon number is almost equal to 1.2, then the optimal success probability nearly approaches the Helstrom bound.
Cite
@article{arxiv.2103.12539,
title = {Two-sequential Conclusive Discrimination between Binary Coherent States via Indirect Measurements},
author = {Min Namkung and Elena R. Loubenets},
journal= {arXiv preprint arXiv:2103.12539},
year = {2021}
}