Multi-access channels in quantum information theory

TL;DR

This paper investigates multi-access quantum channels, focusing on electromagnetic states and noisy communication, providing general results and analyzing practical scenarios in quantum information transfer.

Contribution

It introduces new theoretical insights into multi-access quantum channels, especially in electromagnetic contexts and noisy environments, expanding understanding of quantum communication capabilities.

Findings

General results on multi-access quantum channels

Analysis of electromagnetic field states for information transfer

Insights into one-way noisy quantum communication

Abstract

The multi-access channels in quantum information theory are considered. Classical messages from independent sources, which are represented as some quantum states, are transported by a channel to one address. The messages can interact with each other and with external environment. After statement of problem and proving some general results we investigate physically important case when information is transported by states of electromagnetic field. One-way communication by noisy quantum channels is also considered.