Dynamics of quantum correlation between separated nitrogen-vacancy centers embedded in plasmonic waveguide.
We investigate the dynamics of quantum correlation between two separated nitrogen vacancy centers (NVCs) placed near a one-dimensional plasmonic waveguide. As a common medium of the radiation field of NVCs propagating, the plasmonic waveguide can dynamically induce quantum correlation between the two NVCs. It is interesting to find that such dynamically induced quantum correlation can be preserved in the long-time steady state by locally applying individual driving on the two NVCs. In particular, we also show that a large degree of quantum correlation can be established by this scheme even when the distance between the NVCs is much larger than their operating wavelength. This feature may open new perspectives for devising active decoherence-immune solid-state optical devices and long-distance NVC-based quantum networks in the context of plasmonic quantum electrodynamics.
State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China.|Centre for Quantum Technologies, National University of Singapore, Singapore 117543, Singapore.
Wan-li
WL
Yang
Center for Interdisciplinary Studies &Key Laboratory for Magnetism and Magnetic Materials of the MoE, Lanzhou University, Lanzhou 730000, China.|Centre for Quantum Technologies, National University of Singapore, Singapore 117543, Singapore.
Jun-Hong
JH
An
Centre for Quantum Technologies, National University of Singapore, Singapore 117543, Singapore.
Cheng-jie
CJ
Zhang
Department of Physics, Shaoguan University, Shaoguan, Guangdong 512005, China.
Chang-yong
CY
Chen
Centre for Quantum Technologies, National University of Singapore, Singapore 117543, Singapore.
C H
CH
Oh