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Chinese Journal of Quantum Electronics

A new quantum teleportation circuit

Xiao Han

Published Jan 1, 2007• 0 citations
OpenAlex

Abstract

Quantum teleportation is a typical quantum communication mode which transmitting quantum states in virtue of classical auxiliary methods where the quantum entanglement is introduced. There are many quantum circuit forms to realize teleportation, a new circuit with more compact construction is proposed in this paper based on Brassard's circuit in order to transmit the quantum states effectively.

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Quantum teleportation is a typical quantum communication mode which transmitting quantum states in virtue of classical auxiliary methods where the quantum entanglement is introduced. There are many quantum circuit forms to realize teleportation, a new circuit with more compact construction is proposed in this paper based on Brassard's circuit in order to transmit the quantum states effectively.
Quantum teleportation can realize quantum cryptography communication which can not be deciphered in the physical layer using quantum entangled state.Described characteristics of the quantum entangled state,given out physics gate circuit which can realize quantum entangled;used the quantum circuit,analysised communication model of teleportation,gived out a quantum circuit to realize quantum teleportation base on Bell State which has simpler structure,proved the quantum circuit is feasible,laied the foundations to study quantum cryptography communication further.
Quantum teleportation is a new method in quantum communication that allows quantum states to be sent securely using entanglement and classical signals. This research focuses on problems like maintaining strong entanglement, dealing with quantum noise (decoherence) and handling delays in classical communication, which currently limit practical applications. To solve these problems, we built and tested a quantum teleportation circuit using simulation tools and visualized the results using Bloch spheres and statevector analysis. Our results show that quantum states can be teleported accurately while preserving their properties. This proves quantum teleportation is practically achievable and can be used in secure communication, quantum networks, and quantum computers, making it an important step towards building a reliable quantum internet.
Quantum Teleportation is the process of transmitting Quantum information from one place to another by performing Quantum mechanical operations like entanglement, Bell measurement and classical communication.Unlike the commonly used term teleportation, Quantum teleportation involves only transfer of information rather than particles or objects.Quantum teleportation allows transmission of quantum information despite the impossibility of measuring or broadcasting the information to be transmitted.This paper evolves some new simpler Quantum teleportation circuits which use only Quantum entanglement and a set of Hadamard and CNOT gates.Further, each of the circuits performs teleportation even if Alice does not perform measurement on her qubits.Keeping the feasibility of physical realization in mind, circuits using only adjacent CNOT gates along with Hadamard gates have also been constructed.All these circuits have been evolved using Genetic Algorithms which has been designed with appropriate representation and search operations towards faster convergence.
Quantum entangled and quantum teleportation technologies have achieved great progress since the advancement of quantum teleportation theory has been proposed.Quantum teleportation guarantees the absolute security of quantum communication in technology.Quantum entanglement swapping is proposed on the based of quantum teleportation.This paper gives description of quantum teleportation and entanglement swapping theory,proposes a quantum circuit of entanglement swapping based on Bell state.This circuit has simple structure and can be realized easily.
Abstract This paper proposes a quantum teleportation scheme for incomplete multi-quantum systems. According to the structure of the transport state, the number and structure of the quantum channel can be determined, as well as the quantum circuit for quantum teleportation. Compared to previous quantum teleportation protocols, this scheme reduces both the number of qubits in the channel and the amount of classical communication required, thereby enhancing the efficiency of quantum teleportation. Furthermore, this approach offers a new path for constructing non-maximally entangled state channels, which is beneficial for building complex quantum networks and enabling Multi-party quantum teleportation.
Abstract Chapter 14 discusses the quantum communication protocol called quantum teleportation, which uses the quantum correlations in an entangled particle pair shared between two observers to transmit the information stored in the (unknown) quantum state of a target system from one of the observers to the other. After reviewing the theoretical basics we showcase some of the important experimental demonstrations of teleportation. We then turn to more general protocols related to teleportation such as entanglement swapping, and the general formalism of isometries, before inspecting the option of delayed-choice entanglement swapping. In the light of these findings we compare teleportation to classical information transfer and inspect the related dense-coding protocol. Finally, we give an overview of basic quantum key distribution protocols is given, including the Bennett-Brassard-84 protocol based on conjugate coding and the entanglement-based Ekert-91 protocol