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Physical Review A
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arXiv.org e-Print Archive
Preprint . 2009
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Postselected weak measurement beyond the weak value

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 12 Apr 2010Embargo end date: 01 Jan 2009 English Publisher:American Physical Society (APS)Journal:Physical Review A, volume 81 (issn: 1050-2947, eissn: 1094-1622, Copyright policy )
Authors: Geszti, Tamas;

doi: 10.1103/physreva.81.044102 , 10.48550/arxiv.0909.2206

arXiv: 0909.2206

Postselected weak measurement beyond the weak value

Abstract

Closed expressions are derived for the quantum measurement statistics of pre-and postselected gaussian particle beams. The weakness of the pre-selection step is shown to compete with the non-orthogonality of post-selection in a transparent way. The approach is shown to be useful in analyzing post-selection-based signal amplification, allowing measurements to be extended far beyond the range of validity of the well-known Aharonov-Albert-Vaidman limit.

The published version; with respect to previous one, note changes in Eqs. (16),(17),(19).

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Keywords

Quantum Physics, FOS: Physical sciences, Quantum Physics (quant-ph)

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    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
35
Top 10%
Top 10%
Top 10%
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bronze