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Open Quantum Systems Decoherence Entanglement Theory Quantum Correlations

Classicality and amplification in postselected weak measurement

arXiv

Authors: Tao Wang, Rui Zhang, Gang Li, Xue-Mei Su

Year

2015

Paper ID

26935

Status

Preprint

Abstract Read

~2 min

Abstract Words

108

Citations

N/A

Abstract

Nearly thirty years ago the possibility of anomalous weak amplfication (AWA) was revealed by Aharonov, Albert and Vaidman [1]. Recently two papers presents two AWA schemes which are beyond the traditional proposal given by them [14, 15]. At the first glance the two papers seems very different. Ref. [14] discusses the thermal light cross-Kerr effect and finds only postselection can give the amplification effect without interference of the postselected meter states, and Ref. [15] shows that only weak interaction itself can give the amplification effect without postselection. Here the relationships between the two papers are pointed out and a generalized framework for AWA via postselecting a pair of orthogonal final states is shown.

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Nearly thirty years ago the possibility of anomalous weak amplfication (AWA) was revealed by Aharonov, Albert and Vaidman [1].

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1510.00157 [2] arXiv https://arxiv.org/abs/1510.00157 [3] Publisher https://arxiv.org/abs/1510.00157

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