Symmetric-Cyclic Bidirectional Quantum Teleportation of Bell-like State via Entanglement-Swapping

TL;DR

This paper introduces a symmetric-cyclic bidirectional quantum teleportation protocol for Bell-like states among three parties using entanglement-swapping with GHZ states, achieving high efficiency in quantum networks.

Contribution

It presents a novel symmetric-cyclic bidirectional teleportation scheme utilizing entanglement-swapping with GHZ states, optimizing efficiency compared to existing protocols.

Findings

Achieves maximum intrinsic efficiency of 33.33%.

Utilizes three maximally entangled GHZ states as the quantum channel.

Enables simultaneous bidirectional teleportation among three parties.

Abstract

Quantum teleportation is a primitive foundational protocol for exchanging quantum information in a quantum network as well as infrastructural operational strategy in the measurement-based quantum computation. Designing an efficient scheme for quantum teleportation is a vibrant field of intensive research. We propose a scheme wherein Bell-like states are being exchanged simultaneously in cyclic sequence, i.e., symmetric-cyclic bi-directional quantum teleportation, amongst three communicating parties forming a quantum network, Alice, Bob and Charlie via entanglement-swapping with the aid of a cluster of three maximally entangled GHZ-states as the quantum channel. Moreover, based upon communication- and operation- complexity, we compare our protocol with other equivalent protocols and found that the intrinsic efficiency of our protocol is maximum pegging at 33.33%.