Geometric entangling gates for coupled cavity system in decoherence-free subspaces

OPTICS COMMUNICATIONS

卷:285

Article

Chen, Yue-Yue^2,3  Feng, Xun-Li^1,2,3  Oh, C. H.¹ 

[1] Natl Univ Singapore, Ctr Quantum Technol, Singapore 117543, Singapore

[2] S China Normal Univ, Lab Photon Informat Technol, LQIT, Guangzhou 510006, Guangdong, Peoples R China

[3] S China Normal Univ, SIPSE, Guangzhou 510006, Guangdong, Peoples R China

关键词: Quantum entangling gate;    Coupled cavity system;    Decoherence-free subspaces;    Geometric phase;   

DOI  :  10.1016/j.optcom.2012.08.008

来源: Elsevier

【 摘 要 】

We propose a scheme to implement geometric entangling gates for two logical qubits in a coupled cavity system in decoherence-free subspaces. Each logical qubit is encoded with two atoms trapped in a single cavity and the geometric entangling gates are achieved by cavity coupling and controlling the external classical laser fields. Based on the coupled cavity system, the scheme allows the scalability for quantum computing and relaxes the requirement for individually addressing atoms. (C) 2012 Elsevier B.V. All rights reserved.

【 授权许可】

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