Quantum gate operations in decoherence-free fashion with separate nitrogen-vacancy centers coupled to a whispering-gallery mode resonator

Regular Article

Abstract

We propose a scheme to achieve quantum gate operations within decoherence-free subspace (DFS) using nitrogen-vacancy centers in separate diamond nanocrystals coupled to a whispering-gallery mode resonator. By virtue of Raman transitions in the dispersive regime, we present two different methods for realizing quantum gating within DFS in a deterministic way. The quantum gating is seriously treated by considering all kinds of decoherence mechanisms, and the experimental feasibility is achieved using currently available technology.

Keywords

Quantum Information 

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Department of Physics and Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of EducationHunan Normal UniversityChangshaP.R. China
  2. 2.State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and MathematicsChinese Academy of SciencesWuhanP.R. China

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