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Classical pendulum feels quantum bac...

Matsumoto, Nobuyuki.

Classical pendulum feels quantum back-action

Record Type:	Electronic resources : Monograph/item
Title/Author:	Classical pendulum feels quantum back-actionby Nobuyuki Matsumoto.
Author:	Matsumoto, Nobuyuki.
Published:	Tokyo :Springer Japan :2016.
Description:	xii, 103 p. :ill., digital ;24 cm.
Contained By:	Springer eBooks
Subject:	Optomechanics.
Online resource:	http://dx.doi.org/10.1007/978-4-431-55882-8
ISBN:	9784431558828$q(electronic bk.)

Classical pendulum feels quantum back-action
Matsumoto, Nobuyuki.

Classical pendulum feels quantum back-action[electronic resource] /by Nobuyuki Matsumoto. - Tokyo :Springer Japan :2016. - xii, 103 p. :ill., digital ;24 cm. - Springer theses,2190-5053. - Springer theses..

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.

ISBN: 9784431558828$q(electronic bk.)

Standard No.: 10.1007/978-4-431-55882-8doiSubjects--Topical Terms:

560214
Optomechanics.

LC Class. No.: TA1522

Dewey Class. No.: 621.36

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