Simple understanding of quantum weak values.

Abstract:

:In this work we revisit the important and controversial concept of quantum weak values, aiming to provide a simplified understanding to its associated physics and the origin of anomaly. Taking the Stern-Gerlach setup as a working system, we base our analysis on an exact treatment in terms of quantum Bayesian approach. We also make particular connection with a very recent work, where the anomaly of the weak values was claimed from the pure statistics in association with "disturbance" and "post-selection", rather than the unique quantum nature. Our analysis resolves the related controversies through a clear and quantitative way.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Qin L,Feng W,Li XQ

doi

10.1038/srep20286

subject

Has Abstract

pub_date

2016-02-03 00:00:00

pages

20286

issn

2045-2322

pii

srep20286

journal_volume

6

pub_type

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