中国物理B ›› 2020, Vol. 29 ›› Issue (11): 110301-.doi: 10.1088/1674-1056/aba5fa

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L Jebli1,†(), M Amzioug4,5, S E Ennadifi4, N Habiballah2,3, M Nassik1   

  • 收稿日期:2020-04-21 修回日期:2020-06-29 接受日期:2020-07-15 出版日期:2020-11-05 发布日期:2020-11-03

Effect of weak measurement on quantum correlations

L Jebli1, †, M Amzioug4,5, S E Ennadifi4, N Habiballah2,3, and M Nassik1$   

  1. 1 EPTHE, Department of Physics, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
    2 Faculty of Applied Sciences, Ibn Zohr University, Ait-Melloul, Morocco
    3 Abdus Salam International Center for Theoretical Physics, Strada Costiera, 11 I-34151, Trieste, Italy
    4 LHEP-MS, Department of Physics, Faculty of Science Mohammed V University, Rabat, Morocco
    5 Department of Physics, Ecole Normale Sup´eieure (ENS), Mohammed V University, Rabat, Morocco
  • Received:2020-04-21 Revised:2020-06-29 Accepted:2020-07-15 Online:2020-11-05 Published:2020-11-03
  • Contact: Corresponding author. E-mail: vitto.han@gmail.com

Abstract:

We investigate the local quantum uncertainty (LQU ) in weak measurement. An expression of weak LQU is explicitly determined. Also, we consider some cases of three special X states, Werner state, circulant two-qubit states, and Heisenberg model via LQU in normal and weak measurements. We find that the LQU in weak measurement is weaker than the case of strong measurement.

Key words: local quantum uncertainty, weak measurement, weak local quantum uncertainty