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arXiv:quant-ph/0701145

Quantum Multiplexing for Quantum Computer Networks

Juan Carlos García-Escartín, Pedro Chamorro‐Posada

Published Jan 22, 2007• 4 citations
arXivHTMLPDF

Abstract

In communication networks many different channels must share a limited amount of resources. In order to allow for multiple simultaneous communications, multiple access techniques are routinely employed. With quantum communication, it is possible to share a new kind of resource. All of the system channels can be accommodated into a single channel in a larger Hilbert space. In the scheme, a single line combines the information of all the users, and, at the receiver, the original quantum channels are recovered. The given multiplexer/demultiplexer circuit can perform this n qubits to qudit transformation. Connections with superdense coding and classical multiple access schemes are discussed.

DOI
10.48550/arxiv.quant-ph/0701145

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Transmission of information in the form of qubits much faster than the speed of light is the important aspects of quantum information theory.Quantum information processing exploits the quantum nature of information that needs to be stored, encoded, transmit, receive and decode the information in the form of qubits.Bosonic channels appear to be very attractive for the physical implementation of quantum communication.This paper does the study of quantum channels and how best it can be implemented with the existing infrastructure that is the classical communication.Multiple access to the quantum network is the requirement where multiple users want to transmit their quantum information simultaneously without interfering with each others.
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