Squeezed quadrature fluctuations in a gravitational wave detector using squeezed light

Year: 2013

Type: article

Abstract: Squeezed states of light are an important tool for optical measurements below the shot noise limit and for optical realizations of quantum information systems. Recently, squeezed vacuum states were deployed to enhance the shot noise limited performance of gravitational wave detectors. In most practical implementations of squeezing enhancement, relative fluctuations between the squeezed quadrature angle and the measured quadrature (sometimes called squeezing angle jitter or phase noise) are one limit to the noise reduction that can be achieved. We present calculations of several effects that lead to quadrature fluctuations, and use these estimates to account for the observed quadrature fluctuations in a LIGO gravitational wave detector. We discuss the implications of this work for quantum enhanced advanced detectors and even more sensitive third generation detectors.

Source: Optics Express

DOI: 10.1364/oe.21.019047

Institutions: Massachusetts Institute of Technology, Australian National University, Columbia University, University of Michigan, LIGO Scientific Collaboration, Max Planck Society, Max Planck Institute for Gravitational Physics, University of Oregon

Language: English

Topic: Pulsars and Gravitational Waves Research

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funders: National Science Foundation, Massachusetts Institute of Technology, California Institute of Technology

Awards: G1036789809, The Operation and Maintenance of the Laser Interferometer Gravitational Wave Observatory (LIGO)

OpenAlex ID: W2007885166