Weak measurement with a coherent state pointer and its implementation in optomechanical system

TL;DR

This paper introduces a new physical mechanism for weak measurement amplification using a coherent state pointer and orthogonal postselection, and proposes an optomechanical system scheme to realize this effect.

Contribution

It presents a novel physical mechanism for weak measurement amplification and a practical optomechanical implementation scheme.

Findings

Amplification effect achieved through weak measurement with a coherent state pointer.

A general physical mechanism underlying the amplification effect.

Proposed optomechanical system scheme for practical implementation.

Abstract

Weak measurement with a coherent state pointer and in combination with an orthogonal postselection can lead to a surprising amplification effect, and we give a fire-new physical mechanism about the weak measurement in order to understand this effect. Moreover, this physical mechanism is a general result and based on it, we present a scheme of optomechanical system to implement weak measurement amplification on an orthogonal postselection.