Non-destructive discrimination of multiparticle cluster states for quantum computation

TL;DR

This paper presents schemes for non-destructive discrimination of 4- and 5-qubit cluster states, enabling identification without destroying entanglement, which is crucial for quantum computation and communication.

Contribution

It introduces novel non-destructive discrimination schemes for 4- and 5-qubit cluster states, expanding quantum state identification methods.

Findings

Successfully discriminates 16 four-qubit cluster states

Successfully discriminates 32 five-qubit cluster states

Applicable to quantum information processing

Abstract

Discriminating between orthogonal quantum systems without destroying their entanglement is of interest to quantum computation and communication. In this paper, we explicate the schemes for the non-destructive discrimination (NDD) of 16 orthogonal four qubit cluster states and 32 orthogonal five qubit cluster states respectively. This technique will find its applications in various branches of quantum information theory.