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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] (Scholars:夏岩) | Song, Jie (Song, Jie.) [6]

Indexed by:

EI SCIE

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. (C) 2020 Elsevier B.V. All rights reserved.

Keyword:

Cavity QED Pulse modulation Quantum entangling gate

Community:

  • [ 1 ] [Wang, Yan]Harbin Inst Technol, Sch Phys, Harbin 150001, Peoples R China
  • [ 2 ] [Wu, Jin-Lei]Harbin Inst Technol, Sch Phys, Harbin 150001, Peoples R China
  • [ 3 ] [Han, Jin-Xuan]Harbin Inst Technol, Sch Phys, Harbin 150001, Peoples R China
  • [ 4 ] [Jiang, Yong-Yuan]Harbin Inst Technol, Sch Phys, Harbin 150001, Peoples R China
  • [ 5 ] [Song, Jie]Harbin Inst Technol, Sch Phys, Harbin 150001, Peoples R China
  • [ 6 ] [Jiang, Yong-Yuan]Minist Ind & Informat Technol, Key Lab Micronano Optoelect Informat Syst, Harbin 150001, Peoples R China
  • [ 7 ] [Song, Jie]Minist Ind & Informat Technol, Key Lab Micronano Optoelect Informat Syst, Harbin 150001, Peoples R China
  • [ 8 ] [Jiang, Yong-Yuan]Harbin Inst Technol, Key Lab Microopt & Photon Technol Heiloniang Prov, Harbin 150001, Peoples R China
  • [ 9 ] [Song, Jie]Harbin Inst Technol, Key Lab Microopt & Photon Technol Heiloniang Prov, Harbin 150001, Peoples R China
  • [ 10 ] [Jiang, Yong-Yuan]Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China
  • [ 11 ] [Song, Jie]Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China
  • [ 12 ] [Xia, Yan]Fuzhou Univ, Dept Phys, Fuzhou 350002, Peoples R China

Reprint 's Address:

  • [Song, Jie]Harbin Inst Technol, Sch Phys, Harbin 150001, Peoples R China

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Source :

PHYSICS LETTERS A

ISSN: 0375-9601

Year: 2021

Volume: 388

2 . 7 0 7

JCR@2021

2 . 3 0 0

JCR@2023

ESI Discipline: PHYSICS;

ESI HC Threshold:87

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 4

SCOPUS Cited Count: 4

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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