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author:

Wang, Yan (Wang, Yan.) [1] | Wu, Jin-Lei (Wu, Jin-Lei.) [2] | Han, Jin-Xuan (Han, Jin-Xuan.) [3] | Jiang, Yong-Yuan (Jiang, Yong-Yuan.) [4] | Xia, Yan (Xia, Yan.) [5] | Song, Jie (Song, Jie.) [6]

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Abstract:

We propose a simple scheme for implementing resilient two-qubit entangling gates in universal cavity QED systems. The technique employs suitably designed laser pulse with modulated amplitude and phase to decrease residual qubit-cavity entanglement that reduces the fidelity of the desired entangling operation. Numerical simulations suggest that the optimized gates are robust against errors in gate time, frequency detuning, atom-field coupling constant and pulse amplitude. Moreover, the optimized gates provide increased robustness to cavity decay as well as strong suppression of atomic spontaneous emissions. With modest experimental parameters the scheme could enable a high gate fidelity exceeding 99% in realistic scenarios. © 2020 Elsevier B.V.

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  • [ 1 ] [Wang, Yan]School of Physics, Harbin Institute of Technology, Harbin; 150001, China
  • [ 2 ] [Wu, Jin-Lei]School of Physics, Harbin Institute of Technology, Harbin; 150001, China
  • [ 3 ] [Han, Jin-Xuan]School of Physics, Harbin Institute of Technology, Harbin; 150001, China
  • [ 4 ] [Jiang, Yong-Yuan]School of Physics, Harbin Institute of Technology, Harbin; 150001, China
  • [ 5 ] [Jiang, Yong-Yuan]Key Laboratory of Micro-Nano Optoelectronic Information System, Ministry of Industry and Information Technology, Harbin; 150001, China
  • [ 6 ] [Jiang, Yong-Yuan]Key Laboratory of Micro-Optics and Photonic Technology of Heilongjiang Province, Harbin Institute of Technology, Harbin; 150001, China
  • [ 7 ] [Jiang, Yong-Yuan]Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan; 030006, China
  • [ 8 ] [Xia, Yan]Department of Physics, Fuzhou University, Fuzhou; 350002, China
  • [ 9 ] [Song, Jie]School of Physics, Harbin Institute of Technology, Harbin; 150001, China
  • [ 10 ] [Song, Jie]Key Laboratory of Micro-Nano Optoelectronic Information System, Ministry of Industry and Information Technology, Harbin; 150001, China
  • [ 11 ] [Song, Jie]Key Laboratory of Micro-Optics and Photonic Technology of Heilongjiang Province, Harbin Institute of Technology, Harbin; 150001, China
  • [ 12 ] [Song, Jie]Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan; 030006, China

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Physics Letters, Section A: General, Atomic and Solid State Physics

ISSN: 0375-9601

Year: 2021

Volume: 388

2 . 7 0 7

JCR@2021

2 . 3 0 0

JCR@2023

ESI HC Threshold:87

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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