1.

Record Nr.

UNISA996418176103316

Autore

Cripe Jonathan

Titolo

Broadband Measurement and Reduction of Quantum Radiation Pressure Noise in the Audio Band [[electronic resource] /] / by Jonathan Cripe

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2020

ISBN

3-030-45031-7

Edizione

[1st ed. 2020.]

Descrizione fisica

1 online resource (XIX, 140 p. 120 illus., 78 illus. in color.)

Collana

Springer Theses, Recognizing Outstanding Ph.D. Research, , 2190-5053

Disciplina

535.15

Soggetti

Gravitation

Quantum optics

Astrophysics

Classical and Quantum Gravitation, Relativity Theory

Quantum Optics

Astrophysics and Astroparticles

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di contenuto

Gravitational Waves and Gravitational Wave Detectors -- Optical Springs -- Cantilever Micro-Mirror and Optomechanical Cavity Design -- Radiation-Pressure-Mediated Control of an Optomechanical Cavity -- Observation of an Optical Spring from a Beamsplitter -- Broadband Measurement of Quantum Radiation Pressure Noise at Room Temperature -- Quantum Radiation Pressure Noise Reduction and Evasion -- Future Work and Conclusion.

Sommario/riassunto

This book presents a direct measurement of quantum back action, or radiation pressure noise, on a macroscopic object at room temperature across a broad bandwidth in the audio range. This noise source was predicted to be a limitation for gravitational wave interferometers in the 1980s, but it has evaded direct characterization in the gravitational wave community due to the inherent difficult of reducing thermal fluctuations below the quantum back action level. This back action noise is a potential limitation in Advanced LIGO and Advanced Virgo, and Cripe’s experiment has provided a platform for the demonstration



of quantum measurement techniques that will allow quantum radiation pressure noise to be reduced in these detectors. The experimental techniques Cripe developed for this purpose are also applicable to any continuous measurement operating near the quantum limit, and could lead to the possibility of observing non-classical behavior of macroscopic objects. .