摘要
We study the dynamics of the quantum steering between two separated qubits trapped in a one-dimensional plasmonic waveguide.By numerical methods,we calculate the quantum steerability and other quantum correlations,i.e.,entanglement,discord,and coherence,for both cases with and without laser driving fields.It is found that steerability may exhibit a sudden disappearance and sudden reappearance phenomenon.Specifically,there exist time windows with no steerability but finite entanglement.The effects of plasmon wavenumber and the distance between the two qubits on steerability are also examined.Furthermore,we show that quantum steerability is tunable by adjusting the laser driving fields.
作者
Ye-Qi Zhang
Xiao-Ting Ding
Jiao Sun
Tian-Hu Wang
张业奇;丁潇婷;孙娇;王天虎(Department of Mathematics and Physics,North China Electric Power University,Beijing 102206,China;School of Energy Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,China)
基金
Project supported by the National Natural Science Foundation of China(Grant Nos.51876059 and 11805065)
the Fundamental Research Funds for the Central Universities(Grant Nos.2021MS009 and 2021MS046)
