scholarly journals Reconstruction of Bohmian trajectories via weak measurement for bipartite states

2018 ◽  
Vol 510 ◽  
pp. 518-521
Author(s):  
Agnaldo R. de Almeida ◽  
Wesley B. Cardoso ◽  
Ardiley T. Avelar ◽  
Norton G. de Almeida
Keyword(s):  
Weak Measurement ◽  
Bohmian Trajectories ◽  
Bipartite States

scholarly journals Experimental nonlocal and surreal Bohmian trajectories

2016 ◽  
Vol 2 (2) ◽  
pp. e1501466 ◽  
Author(s):  
Dylan H. Mahler ◽  
Lee Rozema ◽  
Kent Fisher ◽  
Lydia Vermeyden ◽  
Kevin J. Resch ◽  
...  
Keyword(s):  
Bohmian Mechanics ◽  
Weak Measurement ◽  
Weak Measurements ◽  
Quantum Particles ◽  
Bohmian Trajectories

Weak measurement allows one to empirically determine a set of average trajectories for an ensemble of quantum particles. However, when two particles are entangled, the trajectories of the first particle can depend nonlocally on the position of the second particle. Moreover, the theory describing these trajectories, called Bohmian mechanics, predicts trajectories that were at first deemed “surreal” when the second particle is used to probe the position of the first particle. We entangle two photons and determine a set of Bohmian trajectories for one of them using weak measurements and postselection. We show that the trajectories seem surreal only if one ignores their manifest nonlocality.

Nanoscale film thickness measurement based on weak measurement

2020 ◽  
Vol 91 (12) ◽  
pp. 123111
Author(s):  
Zirui Qin ◽  
Qinggang Liu ◽  
Chong Yue ◽  
Yaopu Lang ◽  
Xinglin Zhou
Keyword(s):  
Film Thickness ◽  
Thickness Measurement ◽  
Weak Measurement ◽  
Film Thickness Measurement

scholarly journals Experimental random-party entanglement distillation via weak measurement

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Zheng-Da Li ◽  
Xiao Yuan ◽  
Xu-Fei Yin ◽  
Li-Zheng Liu ◽  
Rui Zhang ◽  
...  
Keyword(s):  
Weak Measurement ◽  
Entanglement Distillation

Weak measurement induced asymmetric quantum cloning

2020 ◽  
Vol 17 (8) ◽  
pp. 085203 ◽  
Author(s):  
Bao-Long Fang ◽  
Jiaojiao Chen ◽  
Feng Chen ◽  
Liu Ye
Keyword(s):  
Weak Measurement ◽  
Quantum Cloning ◽  
Asymmetric Quantum

scholarly journals Quantum Nonlocality of Arbitrary Dimensional Bipartite States

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Ming Li ◽  
Tinggui Zhang ◽  
Bobo Hua ◽  
Shao-Ming Fei ◽  
Xianqing Li-Jost
Keyword(s):  
Quantum Nonlocality ◽  
Bipartite States

Protecting quantum coherence in an open system under non-inertial frames

2017 ◽  
Vol 31 (35) ◽  
pp. 1750336
Author(s):  
Long-Fei Wang ◽  
Ming-Ming Du ◽  
Liu Ye
Keyword(s):  
Open System ◽  
Significant Interaction ◽  
Quantum Coherence ◽  
Weak Measurement ◽  
Entangled State ◽  
Unruh Effect ◽  
Amplitude Damping ◽  
Inertial Frames ◽  
Weak Measurement And Reversal

In this paper, we explore the dynamics and protection of quantum coherence in an open system under non-inertial frames by weak measurement and reversal, and design four strategies to protect the quantum coherence of an initial two-qubit entangled state, when the systems suffer from amplitude damping (AD) channel and one subsystem is under non-inertial frames. In practice, there is no strict inertial frames, decoherence and degradation of the quantum coherence caused by the Unruh effect form acceleration will have a significant interaction, therefore it is important to find some means to protect quantum coherence under non-inertial frames.

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