Quasi-deterministic secure quantum communication using non-maximally entangled states

TL;DR

This paper introduces a new secure quantum communication protocol utilizing non-maximally entangled states, achieving quasi-deterministic transmission with reduced entanglement requirements and a maximum efficiency of 33.333%.

Contribution

It presents a novel quantum communication scheme that reduces entanglement needs and enhances efficiency compared to existing methods.

Findings

Maximum qubit efficiency of 33.333% achieved.

Protocol can operate with significantly reduced entanglement.

Secure transmission of long data sequences demonstrated.

Abstract

Quantum communication in general helps deter potential eavesdropping in the course of transmission of bits to enable secure communication between two or more parties. In this paper, we propose a novel quasi-deterministic secure quantum communication scheme using non-maximally entangled states. The proposed scheme follows a simple procedure, and cases where the entanglement required can be significantly reduced to carry out the protocol successfully are discussed. Long sequences or the whole sequence of data can be sent after error checking for a potential eavesdropper. The maximum qubit efficiency of the proposed protocol is found to be 33.333%.