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International Conference on Smart Applications, Communications and Networking (SmartNets)

Bidirectional Quantum Teleportation By Simultaneously Sending A Secret Classic Bit From Both Sides

Akram Talib Kareem, Yousif Samer Mudhafar, Waleed Abed Abohana, Haider Salih Mahdi, Ali Hamzah Abbas

Published May 28, 2024• 0 citations
Publisher

Abstract

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.

DOI
10.1109/smartnets61466.2024.10577696

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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.
The most important branch of quantum telecommunications is quantum teleportation because in this branch we transmit what we do not know and all about its content without sending any qubits and using only quantum entanglement. In recent years, many designs have been proposed in this field, which are usually not in the hands of users from the beginning, such as the first design of channel qubits, these qubits are transmitted using quantum channels, so establishing security or authentication of users is important. In this paper, we will present a design with an authentication step that is transmitted from the sender simultaneously to 2 unknown qubit receivers, two different qubits. This plan also has 2 controllers for licensing and security review of protocol and destruction of channel qubits in case of error.
In this paper, a bidirectional quantum teleportation protocol based on Einstein-Podolsky-Rosen (EPR) pairs and entanglement swapping is proposed. In this scheme, two users can simultaneously transmit an unknown single-qubit state to each other. The implementation of the proposed scheme is easier in experiment as compared to previous work. By utilizing this bidirectional quantum teleportation protocol, a bidirectional quantum secure direct communication scheme without carrying secret message is presented. Therefore, in the case of using perfect quantum channel, the protocol is completely secure. Finally, security analyses are investigated.
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.
Abstract This article proposes an asymmetric bidirectional hierarchical quantum teleportation protocol, which is based on a quantum channel composed of a maximum of eight-qubit entangled state. With this method, Alice can transmit an unknown single-qubit state to Bob, meanwhile, Bob can transmit an arbitrary unknown two-qubit quantum state to Alice. As a sender with high authority, Bob can send any unknown two-qubit quantum state to Alice only under the sole control of the controller Charlie; Alice, as a sender with low-level permissions, if Bob intends to receive the unknown single-qubit quantum state sent by Alice, he must get the permission and assistance of Charlie and David to complete the communication.
Quantum sciences and technologies introduce a new arena whose applications are widely used in the microscopic world. Quantum communication is also an important branch of quantum science by which we intend to transmit quantum information. Quantum teleportation is important because it uses the entanglement principle which is unique in quantum space to transmit quantum information. In fact, in this type of protocol, no information is sent and everything is transmitted using the miracle of entanglement. In this paper, an attempt is made to present a quantum teleportation scheme that, unlike the other designs, can change the destination of qubits. This means that at the beginning of the protocol, the receivers have no idea who has sent the qubits, and the controller decides how these communications will work. At last, noise analysis is presented.
Abstract Using a six-qubit Bell-cluster state, we proposed an asymmetric bidirectional quantum teleportation scheme. Two participants Anne and Benson are both the sender and receiver. Only applying Bell-state measurement, single- and two-qubit unitary operations as well as classical communication, Anne can transmit an arbitrary two-qubit unknown state to Benson, meanwhile Benson can also send an arbitrary single-qubit unknown state to Anne. Analysis shows that our scheme is feasible with the present experiment technologies.