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International Journal of Next-Generation Networks

Transferring Quantum Information through the Quantum Channel using Synchronous Multiplexing for Multiple users

Sumathi H.R, Vidya Raj C.

Published Mar 31, 2015• 1 citation
Publisher

Abstract

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.

DOI
10.5121/ijngn.2015.7101

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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.
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
Tomorrows future quantum-internet will need to support a wide range of operations including those arising from quantum-communication, distributed quantum computation and quantum remote sensing tasks. Such applications require the transmission of quantum information across the network where channel losses are a serious problem. Here we introduce the concept of quantum multiplexing to reduce the severity of this issue where multiple-qubits of information are encoded onto each transmitted photon. We will show how one not only saves on the number of photons needed but also on the physical resources required within the network nodes. We will discuss the implementations of quantum multiplexing in various networking applications.
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.
Quantum communication will be at the heart of many future quantum technologies providing the foundation to for them to coherently interact. Here we introduce the concepts of quantum multiplexing and aggregation for use in such quantum communication related tasks. Quantum multiplexing involves encoding multiple-qubits of information onto each transmitted photon and allows us to significantly reduce the effect channel losses have within those tasks. Next quantum aggregation allows quantum messages to be divided and transmitted in a coherent way over different paths when resources in given paths are limited. We will discuss potential implementations and the resources required.
Quantum applications transmit and receive data through quantum and classical communication channels. Channel capacity, the distance and the photon path between transmitting and receiving parties and the speed of the computation links play an essential role in timely synchronization and delivery of information using classical and quantum channels. In this study, we analyze and optimize the parameters of the communication channels needed for the quantum application to successfully operate. We also develop algorithms for synchronizing data delivery on classical and quantum channels.
The communication in the quantum networks is based on optical channels to take the advantage of analog, optical and digital communication system. Single data which carries information over the channel can be termed as solid state atoms or photons. The reliable channel is the one which carries the same state from the sending node to destination there can be superposition of states. practically ideal channel does not exist, the optical Gaussian channel which is considered as a degradable quantum channel. The optical interfaces and standard signal format would allow interconnecting fiber optic transmission equipment through multiple networks which carries information generated by multiple users of the network. Taking the infrastructure of existing telecommunication use the quantum information so that it is secure by its nature.