Improving the quality of spatial quantum channels

TL;DR

This paper demonstrates that dividing a spatial quantum channel into periodic segments can enhance information transmission quality, especially in non-Markovian or time-dependent Markovian processes, with implications for quantum communication.

Contribution

It introduces a novel method of improving spatial quantum channels by segmenting them, linking to quantum zero effect and potential applications.

Findings

Improved purity, fidelity, and concurrence through channel segmentation

Applicable to non-Markovian and time-dependent Markovian processes

Discussion of quantum zero effect and practical implications

Abstract

We show, for the non-Markovian or time-dependent Markovian process, by breaking up a spatial quantum channel (SQC) into a series of periodically arranged sub-components, that the quality of information transmission described by the purity, fidelity and concurrence of the output states can be improved. The relation to the quantum zero effect and possible applications of the idea have been discussed.