Enhancing remote state preparation via five-qubit cluster state in noisy environments

This study proposes a remote state preparation scheme using a five-qubit cluster state as the quantum channel. In this scheme, Alice can prepare an arbitrary two-qubit entangled state on Bob’s side using only some local operations and classical communications. The scheme is first described in an ide...

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Bibliographic Details
Published in:Optical and quantum electronics 2021-02, Vol.53 (2), Article 104
Main Author: Jiang, SheXiang
Format: Article
Language:English
Subjects:
Accuracy
Amplitudes
Characterization and Evaluation of Materials
Circuits
Clusters
Computer Communication Networks
Damping
Electrical Engineering
Entangled states
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Qubits (quantum computing)
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Summary:This study proposes a remote state preparation scheme using a five-qubit cluster state as the quantum channel. In this scheme, Alice can prepare an arbitrary two-qubit entangled state on Bob’s side using only some local operations and classical communications. The scheme is first described in an ideal environment, and the corresponding quantum circuit is given. An investigation of the scheme in the amplitude-damping noise and collective-dephasing noise, and an analysis of their influence on the scheme are carried out by calculating the fidelity of the output state. Moreover, the study takes full advantage of the weak measurement and reversing measurement to enhance the fidelity in the amplitude-damping noise, and constructing a decoherence-free subspace to suppress the collective-dephasing noise. The findings indicate that the schemes can provide higher fidelity in the amplitude-damping noise and collective-dephasing noise.
ISSN:0306-8919
1572-817X
DOI:10.1007/s11082-021-02741-1