Gravitational Wave Detection via Weak Measurements Amplification

TL;DR

This paper proposes a novel weak measurements amplification scheme for gravitational-wave detection, potentially enhancing sensitivity and bandwidth of interferometers like LIGO by amplifying ultra-small phase signals.

Contribution

It introduces a universal weak measurements amplification method and a WMA-LIGO design, advancing quantum measurement techniques for gravitational-wave observatories.

Findings

Potential to amplify phase signals by at least 10^3 times

Improved sensitivity and bandwidth for gravitational-wave detection

New approach linking quantum measurement and gravitational-wave observatories

Abstract

A universal amplification scheme of ultra-small phase based on weak measurements is given and a weak measurements amplification based laser interferometer gravitational-wave observatory (WMA-LIGO) is suggested. The WMA-LIGO has potential to amplify the ultra-small phase signal to at least $10^{3}$ order of magnitude such that the sensitivity and bandwidth of gravitational-wave detector can be further improved. Our results not only shed a new light on the quantum measurement but also open a new way to the gravitational-wave detection.