Improving the Precision of Weak Measurements by Postselection Measurement

Postselected weak measurement is a useful protocol for amplifying weak physical effects. However, there has recently been controversy over whether it gives any advantage in precision. While it is now clear that retaining failed postselections can yield more Fisher information than discarding them, t...

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Veröffentlicht in:	Physical review letters 2015-09, Vol.115 (12), p.120401-120401, Article 120401
Hauptverfasser:	Pang, Shengshi, Brun, Todd A
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplification Coherence Maximum likelihood estimation Signal to noise ratio Strategy
Online-Zugang:	Volltext
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