04441nam 22008295 450 991025461050332120200706094548.04-431-55882-910.1007/978-4-431-55882-8(CKB)3710000000526964(EBL)4182844(SSID)ssj0001597193(PQKBManifestationID)16297865(PQKBTitleCode)TC0001597193(PQKBWorkID)14885895(PQKB)11755498(DE-He213)978-4-431-55882-8(MiAaPQ)EBC4182844(PPN)190886749(EXLCZ)99371000000052696420151201d2016 u| 0engur|n|---|||||txtccrClassical Pendulum Feels Quantum Back-Action /by Nobuyuki Matsumoto1st ed. 2016.Tokyo :Springer Japan :Imprint: Springer,2016.1 online resource (110 p.)Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053"Doctoral Thesis accepted by the University of Tokyo, Tokyo, Japan."4-431-55880-2 Includes bibliographical references at the end of each chapters.Introduction -- Theory of Optomechanics -- Application of Optomechanics -- Optical Torsional Spring -- Experimental Setup -- Experimental Results -- The Future -- Conclusions. .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.Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053Quantum physicsLasersPhotonicsObservations, AstronomicalAstronomy—ObservationsAstrophysicsLow temperature physicsLow temperaturesQuantum Physicshttps://scigraph.springernature.com/ontologies/product-market-codes/P19080Optics, Lasers, Photonics, Optical Deviceshttps://scigraph.springernature.com/ontologies/product-market-codes/P31030Astronomy, Observations and Techniqueshttps://scigraph.springernature.com/ontologies/product-market-codes/P22014Astrophysics and Astroparticleshttps://scigraph.springernature.com/ontologies/product-market-codes/P22022Low Temperature Physicshttps://scigraph.springernature.com/ontologies/product-market-codes/P25130Quantum 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.531.324Matsumoto Nobuyukiauthttp://id.loc.gov/vocabulary/relators/aut815563MiAaPQMiAaPQMiAaPQBOOK9910254610503321Classical Pendulum Feels Quantum Back-Action1820608UNINA