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Classical Pendulum Feels Quantum Back-Action (Springer Theses) Papeback -
by Nobuyuki Matsumoto
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Details
- Title Classical Pendulum Feels Quantum Back-Action (Springer Theses)
- Author Nobuyuki Matsumoto
- Binding Papeback
- Condition New
- Pages 103
- Volumes 1
- Language ENG
- Publisher Springer
- Publication date pp. 115 Softcover reprint of
- Illustrated Yes
- Features Illustrated
- Bookseller's Inventory # 6379308525
- ISBN 9784431567202 / 4431567208
- Weight 0.38 lbs (0.17 kg)
- Dimensions 9.21 x 6.14 x 0.24 in (23.39 x 15.60 x 0.61 cm)
- Category Science
- Dewey Decimal Code 520
- Quantity available 4
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From the rear cover
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.
