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ACTA PHOTONICA SINICA

Research on Multi-particle Entangled State QTDM Communication Scheme and QMU Protocol

Changxing Pei

Published Jan 1, 2009• 4 citations
OpenAlex

Abstract

The teleportation of three entangled states of three-state particles is analyzed.Aquantumchannel time multiplex scheme based on characteristics of entangled source is proposed.The quantum time division multiplexcommunication scheme capable of transmitting multi-particles entangled state is presented finally.The results show that the scheme above not only has a lower BER than BB84 protocol but can realize the multi-users secret communication.

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ACTA PHOTONICA SINICA•Jan 1, 2009•0 citations
The teleportation of three entangled states of three-state particles is analyzed.Aquantumchannel time multiplex scheme based on characteristics of entangled source is proposed.The quantum time division multiplexcommunication scheme capable of transmitting multi-particles entangled state is presented finally.The results show that the scheme above not only has a lower BER than BB84 protocol but can realize the multi-users secret communication.
Based on the classical time division multi-channel communication theory, we present the scheme of quantum channel-time division multiplex (QC-TDM). Moreover, the model of quantum time division multiplexer (QTDM) are proposed. The quantum bit error rate (QBER) is analyzed and the QBER simulation test is performed. The scheme shows that the QTDM can carry out multi-user communication through quantum channel, the QBER can also reach the reliability requirement of communication. The scheme of QC-TDM may play an important role in the establishment of quantum communication in large scale in the future.
Based on the classical time division multi-channel communication theory, we present a scheme of quantum time-division multi-channel communication (QTDMC). Moreover, the model of quantum time division switch (QTDS) and correlative protocol of QTDMC are proposed. The quantum bit error rate (QBER) is analyzed and the QBER simulation test is performed. The scheme shows that the QTDS can carry out multi-user communication through quantum channel, the QBER can also reach the reliability requirement of communication, and the protocol of QTDMC has high practicability and transplantable. The scheme of QTDS may play an important role in the establishment of quantum communication in a large scale in the future.
We may make three-particle entanglement using the source of three-particle W states. Put this particle entanglement down as quantum channel, and transfer information of Bell states measurement and von Neumann measurement using classical channel, the quantum teleportation net may then be realized. Based on this idea, we investigate the physical principle for building the quantum teleportation net using three-particle W states, find out the unitary transformation matrix for quantum teleportation of three-particle W states, and design a quantum teleportation net. We propose a scheme for quantum communications net and its protocol. If all stations work as schemed, quantum communications between any two stations may be realized.
With a five-particle entanglement GHZ state as the quantum channel, a quantum secret sharing scheme is proposed, which put through the three-particle teleportation in order to realize the three-quantum secret sharing. The safety of the scheme is analyzed. The scheme makes full use of five particles' relationship of the GHZ-state. It is found that a Bell-basis measurement, three single particle measurement and corresponding unitary transformation are required. Compared with the pertinent literature, it enhances the quantum transmission without increasing the number of particles, and forms a theoretical basis for transmitting more quanta in quantum secret sharing.
Abstract We propose two schemes for realizing multi-output quantum teleportation of arbitrary unknown single-qubit and single-qudit states, respectively, under a multi-layer control structure. Nine-particle entangled quantum channels are constructed in two-dimensional and d -dimensional Hilbert spaces, and a hierarchical control mechanism is designed to enable controllers with different authorization levels to collaboratively and selectively influence the reconstruction of quantum states at multiple receivers. Firstly, based on the constructed two-dimensional nine-qubit entangled channel, a deterministic multi-layer controlled multi-output teleportation scheme is proposed and its performance is analyzed. The results show that the protocol achieves unit success probability, possesses good universality and scalability, and can effectively defend against unauthorized access and eavesdropping. Finally, the scheme is extended from qubits to arbitrary-dimensional qudits, providing theoretical support for building secure and scalable multi-user quantum communication networks.