A secure deterministic remote state preparation via a seven-qubit entangled channel of an arbitrary two-qubit state under the impact of quantum noise

TL;DR

This paper proposes a deterministic remote state preparation protocol for arbitrary two-qubit states using a seven-qubit entangled channel, analyzing its robustness under various quantum noise models and confirming its security against attacks.

Contribution

It introduces a new RSP scheme utilizing a seven-qubit entangled channel and evaluates its performance and security under multiple quantum noise conditions.

Findings

The protocol maintains high fidelity under certain noise conditions.

Security analysis confirms robustness against internal and external attacks.

Noise impacts are quantitatively analyzed through density matrix and fidelity assessments.

Abstract

As one of the most prominent subfields of quantum communication research, remote state preparation (RSP) plays a crucial role in quantum networks. Here we present a deterministic remote state preparation scheme to prepare an arbitrary two-qubit state via a seven-qubit entangled channel created from Borras \emph{et al.} state. Quantum noises are inherent to each and every protocol for quantum communication that is currently in use, putting the integrity of quantum communication systems and their dependability at risk. The initial state of the system was a pure quantum state, but as soon as there was any noise injected into the system, it transitioned into a mixed state. In this article, we discuss the six different types of noise models namely bit-flip noise, phase-flip noise, bit-phase-flip noise, amplitude damping, phase damping and depolarizing noise. The impact these noises had on the entangled channel may be seen by analysing the density matrices that have been altered as a result of the noise. For the purpose of analysing the impact of noise on the scheme, the fidelity between the original quantum state and the remotely prepared state has been assessed and graphically represented. In addition, a comprehensive security analysis is performed, demonstrating that the suggested protocol is safe against internal and external attacks.