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Unconventional quantum gate based on Rydberg blockade mechanism

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Abstract

We propose a scheme for realizing an unconventional three-qubit controlled-phase gate via the Rydberg blockade mechanism. The qubit is encoded by atomic ensembles that are trapped in optical traps and fixed on an atom chip. Because of the collective nature of the encoding and the Rydberg blockade mechanism, the scheme do not require separate addressing of individual atoms. The time needed for the gate operation is much shorter than that in a similar scheme. In addition, we show the gate can be used as a basic tool for effective generation of large-scale 2D cluster states.

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Authors and Affiliations

  1. Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, College of Physics and Energy, Fujian Normal University, Fuzhou, 350007, China

    RongHui Sun, MingYong Ye & XiuMin Lin

Authors
  1. RongHui Sun
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  2. MingYong Ye
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  3. XiuMin Lin
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Correspondence to MingYong Ye.

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Sun, R., Ye, M. & Lin, X. Unconventional quantum gate based on Rydberg blockade mechanism. Sci. China Phys. Mech. Astron. 56, 1755–1759 (2013). https://doi.org/10.1007/s11433-013-5177-3

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  • DOI: https://doi.org/10.1007/s11433-013-5177-3

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