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Journal of Xidian University

Hided information transmission protocol using quantum teleportation

Haiwen Ou

Published Jan 1, 2008• 0 citations
OpenAlex

Abstract

An hided information transmission protocol using quantum teleportation is proposed.It can transmit 1 bit classic hiding information by using 2 bit of public classic information and a pair of entangled photons.An implementation frame is also presented.Finally,the performance of the transmission scheme is analyzed.

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Quantum teleportation allows one to transmit an arbitrary qubit from point A to point B using a pair of (pre-shared) entangled qubits and classical bits of information. The conventional protocol for teleportation uses two bits of classical information and assumes that the sender has access to only one copy of the arbitrary qubit to be sent. Here, we ask whether we can do better than two bits of classical information if the sender has access to multiple copies of the qubit to be teleported. We place no restrictions on the qubit states. Consequently, we propose a modified quantum teleportation protocol that allows Alice to reset the state of the entangled pair to its initial state using only local operations. As a result, the proposed teleportation protocol requires the transmission of only one classical bit with a probability greater than one-half. This has implications for efficient quantum communications and the security of quantum cryptographic protocols based on quantum entanglement.
Abstract In this study, we propose an encrypted quantum teleportation broadcast scheme using a 6-qubit entangled channel and an encrypted quantum teleportation scheme with a controller via a 7-qubit entangled channel. The quantum state of Alice, to be transmitted, is first encrypted into two distinct states that satisfy certain conditions. As the main sender, Alice designates two agents to transmit encrypted states to two receivers. She shares a 6-qubit entangled state with each party and provides the receivers with a 1-bit classical information containing the chosen encryption. After the agents perform measurements on the corresponding orthogonal bases and send the results to the receivers, each receiver can reconstruct the original state sent by Alice. To enhance security for the receivers, the scheme introduces Alice as a controller. The receivers can reconstruct the original state only if Alice performs a measurement and shares her measurement outcome. The use of encryption ensures that even if an agent’s qubit is intercepted, the actual state remains secure. Alice, as the controller, can also terminate the transmission if a security threat is detected or she change her mind to finish the transmission. The teleportation performance depends on how the qubit is encrypted. For a specific input state used as an example, the protocol obtained a teleportation success probability of 0.9608.
In 1993, C.H. Bennet et. al. had proposed the protocol for quantum teleportation of unknown quantum state. Now, this phenomenon was observed experimentally and numerous applications in quantum telecommunications and informatics are proposed. This method of communication is not direct because it uses classical besides quantum channel. We propose here another scheme where protocol can be established before information transmission and then information is transmitted through quantum electro-dynamic channel of interaction between particles with entangled states. With that, parametric interaction between photons is implemented for coupling of information to this interaction channel and subsequent read out of information. In this scheme, the pair of photons with entangled polarization states is used and parametric interaction trough the field of virtual photons serves as interaction channel.
We present a controlled quantum teleportation protocol. In the protocol, quantum information of an unknown state of a 2-level particle is faithfully transmitted from a sender Alice to a remote receiver Bob via an initially shared triplet of entangled particles under the control of the supervisor Charlie. The distributed entangled particles shared by Alice, Bob and Charlie function as a quantum information channel for faithful transmission. We also propose a controlled and secure direct communication scheme by means of this teleportation. After ensuring the security of the quantum channel, Alice encodes the secret message directly on a sequence of particle states and transmits them to Bob supervised by Charlie using this controlled quantum teleportation. Bob can read out the encoded message directly by the measurement on his qubit. In this scheme, the controlled quantum teleportation transmits Alice's message without revealing any information to a potential eavesdropper. Because there is not a transmission of the qubit carrying the secret message between Alice and Bob in the public channel, it is completely secure for controlled and direct secret communication if perfect quantum channel is used. The special feature of this scheme is that the communication between two sides depends on the agreement of a third side to co-operate.
This paper presents a novel protocol for secure distributed data transmission leveraging the principles of quantum teleportation. The core claim of this protocol is to achieve secure data transmission utilizing quantum teleportation technology. The proposed mechanism relies on quantum entanglement to facilitate the instantaneous transfer of quantum states and incorporates classical communication for error correction, thereby ensuring both the security and reliability of the transmission process. The significance of this work lies in its potential to provide a higher level of security compared to traditional data transmission methods. The protocol details the necessary steps, including entanglement distribution, state transfer, and classical communication phases, with a focus on minimizing the impact of noise and maintaining the integrity of the transmitted information. This protocol offers a viable pathway for building quantum networks capable of secure data exchange, contributing to advancements in quantum cryptography and distributed quantum computing.
Branches of quantum telecommunications are the branches that transmit information using quantum technologies. In some of these branches, quantum information is transmitted, and in others, classical information. The quantum teleportation branch is a branch that transmits an unknown qubit without sending qubits and using entanglement. The branches of quantum direct communication, quantum secret sharing, quantum dense coding, quantum dialogue, etc. are branches that transfer classical bits. In this paper, we intend to present a design that transmits both unknown qubits and 2 bits of classical messages in two directions and simultaneously by using the entanglement and technology of quantum teleportation.