Overview
- Nominated as an outstanding contribution by The
- University of Tokyo's Physics Department in 2014
- Describes precise force measurement imposed on a
- suspended mirror and the effect of the quantum back-action
- Introduces a newly developed technique on how to trap the macroscopic mirror by laser, free from the thermal bath
- Includes supplementary material: sn.pub/extras
Part of the book series: Springer Theses (Springer Theses)
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Table of contents (8 chapters)
Keywords
About this book
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.
Authors and Affiliations
Bibliographic Information
Book Title: Classical Pendulum Feels Quantum Back-Action
Authors: Nobuyuki Matsumoto
Series Title: Springer Theses
DOI: https://doi.org/10.1007/978-4-431-55882-8
Publisher: Springer Tokyo
eBook Packages: Physics and Astronomy, Physics and Astronomy (R0)
Copyright Information: Springer Japan 2016
Hardcover ISBN: 978-4-431-55880-4Published: 14 December 2015
Softcover ISBN: 978-4-431-56720-2Published: 30 March 2019
eBook ISBN: 978-4-431-55882-8Published: 01 December 2015
Series ISSN: 2190-5053
Series E-ISSN: 2190-5061
Edition Number: 1
Number of Pages: XII, 103
Number of Illustrations: 31 b/w illustrations, 5 illustrations in colour
Topics: Quantum Physics, Optics, Lasers, Photonics, Optical Devices, Astronomy, Observations and Techniques, Astrophysics and Astroparticles, Low Temperature Physics