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Quantum entangling gates in decoherence-free subspace via cavity-decay-assisted adiabatic passage
Li Qi-Hai 1,Chen Yue-Yue 1,Zou Ping 2,Feng Xun-Li 1 * #
1.Laboratory of Photonic Information Technology, LQIT & SIPSE, South China Normal University, Guangzhou 510006
2. State Key Laboratory of High Field Laser Physics, Shanghai Institution of Optics and Fine Mechanics, Chinese Academy of Sciences
*Correspondence author
#Submitted by
Subject:
Funding: NSFC （No. No.11074079）, the Ph.D. Programs Foundation of Ministry of Education of China（No.No. 20104407110009）
Opened online:28 February 2014
Accepted by: none
Citation: Li Qi-Hai,Chen Yue-Yue,Zou Ping.Quantum entangling gates in decoherence-free subspace via cavity-decay-assisted adiabatic passage[OL]. [28 February 2014] http://en.paper.edu.cn/en_releasepaper/content/4586944
 
 
We propose a scheme to implement two-qubit quantum entangling gates in the decoherence-free subspaces for two atoms trapped in a single-mode cavity. Decoherence induced by the atomic spontaneous emission and cavity decay is efficiently suppressed by employing the technique of stimulated Raman adiabatic passage and the cavity-decay-assisted quantum Zeno effect. Numerical calculation shows that our scheme can generate quantum entangling gates with high fidelity.
Keywords:decoherence-free subspace; adiabatic passage; quantum Zeno effect
 
 
 

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