Classical Pendulum Feels Quantum Back-Action [[electronic resource] /] / by Nobuyuki Matsumoto

• Autore: Matsumoto Nobuyuki
• Pubblicazione: Tokyo : , : Springer Japan : , : Imprint : Springer, , 2016
• Edizione: 1st ed. 2016.
• Descrizione fisica: 1 online resource (110 p.)
• Disciplina: 531.324
• Soggetto topico: Quantum physics; Lasers; Photonics; Observations, Astronomical; Astronomy—Observations; Astrophysics; Low temperature physics; Low temperatures; Quantum Physics; Optics, Lasers, Photonics, Optical Devices; Astronomy, Observations and Techniques; Astrophysics and Astroparticles; Low Temperature Physics
• Note generali: "Doctoral Thesis accepted by the University of Tokyo, Tokyo, Japan."
• Nota di bibliografia: Includes bibliographical references at the end of each chapters.
• Nota di contenuto: Introduction -- Theory of Optomechanics -- Application of Optomechanics -- Optical Torsional Spring -- Experimental Setup -- Experimental Results -- The Future -- Conclusions. .
• Sommario/riassunto: In this thesis, ultimate sensitive measurement for weak force imposed on a suspended mirror is performed with the help of a laser and an optical cavity for the development of gravitational-wave detectors. According to the Heisenberg uncertainty principle, such measurements are subject to a fundamental noise called quantum noise, which arises from the quantum nature of a probe (light) and a measured object (mirror). One of the sources of quantum noise is the quantum back-action, which arises from the vacuum fluctuation of the light. It sways the mirror via the momentum transferred to the mirror upon its reflection for the measurement. The author discusses a fundamental trade-off between sensitivity and stability in the macroscopic system, and suggests using a triangular cavity that can avoid this trade-off. The development of an optical triangular cavity is described and its characterization of the optomechanical effect in the triangular cavity is demonstrated. As a result, for the first time in the world the quantum back-action imposed on the 5-mg suspended mirror is significantly evaluated. This work contributes to overcoming the standard quantum limit in the future.
• Titolo autorizzato: Classical Pendulum Feels Quantum Back-Action
• ISBN: 4-431-55882-9
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910254610503321
• Lo trovi qui: Univ. Federico II
• Serie: Springer Theses, Recognizing Outstanding Ph.D. Research, . 2190-5053