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Books > Science & Mathematics > Physics > Quantum physics (quantum mechanics)
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Classical Pendulum Feels Quantum Back-Action (Hardcover, 1st ed. 2016)
Loot Price: R3,020
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Classical Pendulum Feels Quantum Back-Action (Hardcover, 1st ed. 2016)
Series: Springer Theses
Expected to ship within 10 - 15 working days
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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.
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