Quantum Toffoli gate in hybrid optomechanical system

An quantum Toffoli gate based on optomechanical system is proposed. By exploring the hybrid optomechanical system, we show that there are equivalence third order Kerr nonlinear effects between optical and mechanical modes. Through parameter analysis, we find that the nonlinear coefficient can be muc...

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Bibliographic Details
Published in:Results in physics 2022-04, Vol.35, p.105338, Article 105338
Main Authors: Lei, Peng, Zhang, Yang, Cheng, Jiong, Zhang, Wen-Zhao
Format: Article
Language:English
Subjects:
Kerr nonlinear effects
Optomechanical system
Quantum Toffoli gate
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Summary:An quantum Toffoli gate based on optomechanical system is proposed. By exploring the hybrid optomechanical system, we show that there are equivalence third order Kerr nonlinear effects between optical and mechanical modes. Through parameter analysis, we find that the nonlinear coefficient can be much stronger than the one under natural conditions. By taking advantage of this nonlinear effect, we can achieve high fidelity photon–phonon Toffoli gate. In the presence of dissipation and noise, we calculate the implementation time and fidelity of Toffoli gate. In addition, the application of this protocol in universal fault-tolerant quantum computation is also analyzed. Our study provides an effective platform for hybrid quantum computation. •Quantum Toffoli gate can be realized in optomechanical system.•Achieving high fidelity photon–phonon Toffoli gate.•Enhancing the optomechanical cross-Kerr nonlinear coefficients.
ISSN:2211-3797
2211-3797
DOI:10.1016/j.rinp.2022.105338