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author:

Wang, Ying-Qi (Wang, Ying-Qi.) [1] | Wang, Yu (Wang, Yu.) [2] | Zhao, Xinyu (Zhao, Xinyu.) [3] | Song, Jie (Song, Jie.) [4] | Xia, Yan (Xia, Yan.) [5]

Indexed by:

EI

Abstract:

In this paper, we propose a rapid and high-fidelity protocol to generate Bell states by dissipation dynamics and Lyapunov control. With a designed dissipative path, an arbitrary initial state can evolve into the target Bell state with high fidelity. Besides, the evolution is accelerated by Lyapunov control pulses, particularly at the early stage of the evolution. The time consumption of achieving a certain threshold of required fidelity is shortened remarkably. By analyzing the impact of the pulses on the protocol, we show how to select the suitable pulses and their strengths to achieve a better fidelity. At last, we numerically prove that the protocol is robust against possible noises. The results presented in the paper may open a new path to achieve fast and high-fidelity generation of entangled states based on dissipation dynamics. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

Keyword:

Dynamics Quantum entanglement

Community:

  • [ 1 ] [Wang, Ying-Qi]Fujian Key Laboratory of Quantum Information and Quantum Optics, Fuzhou University, Fuzhou; 350108, China
  • [ 2 ] [Wang, Ying-Qi]Department of Physics, Fuzhou University, Fuzhou; 350108, China
  • [ 3 ] [Wang, Yu]Fujian Key Laboratory of Quantum Information and Quantum Optics, Fuzhou University, Fuzhou; 350108, China
  • [ 4 ] [Wang, Yu]Department of Physics, Fuzhou University, Fuzhou; 350108, China
  • [ 5 ] [Zhao, Xinyu]Fujian Key Laboratory of Quantum Information and Quantum Optics, Fuzhou University, Fuzhou; 350108, China
  • [ 6 ] [Zhao, Xinyu]Department of Physics, Fuzhou University, Fuzhou; 350108, China
  • [ 7 ] [Song, Jie]Department of Physics, Harbin Institute of Technology, Harbin; 150001, China
  • [ 8 ] [Xia, Yan]Fujian Key Laboratory of Quantum Information and Quantum Optics, Fuzhou University, Fuzhou; 350108, China
  • [ 9 ] [Xia, Yan]Department of Physics, Fuzhou University, Fuzhou; 350108, China

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Source :

Quantum Information Processing

ISSN: 1570-0755

Year: 2021

Issue: 12

Volume: 20

1 . 9 6 5

JCR@2021

2 . 2 0 0

JCR@2023

ESI HC Threshold:87

JCR Journal Grade:2

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 6

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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