典型文献
Protecting geometric quantum discord via partially collapsing measurements of two qubits in multiple bosonic reservoirs
文献摘要：
We study the dynamics of geometric quantum discord(GQD)between two qubits,each qubit interacting at the same time with K independent multiple bosonic reservoirs at zero temperature.In both weak and strong qubit-reservoirs coupling regimes,we find that the increase of the number K of reservoirs can induce the damped oscillation of GQD,and enhance the memory effects of the overall environment.And the Hilbert-Schmidt norm GQD(two-norm GQD)is always smaller than the trace norm geometric quantum discord(one-norm GQD).Therefore,the one-norm GQD is a better way to measure the quantum correlation.Finally,we propose an effective strategy to improve GQD by using partially collapsing measurements,and we find that the protection effect is better with the increase of the weak measurement strength.
文献关键词：
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作者姓名：
Xue-Yun Bai;Su-Ying Zhang
作者机构：
Institute of Theoretical Physics and State Key Laboratory of Quantum Optics and Quantum Optics Devices,Shanxi University,Taiyuan 030006,China
文献出处：
引用格式：
[1]Xue-Yun Bai;Su-Ying Zhang-.Protecting geometric quantum discord via partially collapsing measurements of two qubits in multiple bosonic reservoirs)[J].中国物理B（英文版）,2022(04):183-189
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AB值：
0.477986
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