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Zoology and wildlife conservation

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Abstracts » Zoology and wildlife conservation

Self-cooling of a micomirror by radiation pressure

Article Abstract:

The observation of self-cooling of a micromirror by radiation pressure inside a high-finesse optical cavity is described. The cooling of mechanical oscillators is an important requirement for many open problems of modern physics and in this experiment changes in intensity in a detuned cavity provide the mechanism for entropy flow from the mirror's oscillatory motion to the low-entropy cavity field and this will permit cooling ratios beyond 1000.

Author: Aspelmeyer, M., Schwab, K.C., Gigan, S., Bohm, H.R., Paternostro, M., Blaser, F., Langer, G., Hertzberg, J.B., Bauerle, D., Zeillinger, A.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
Radiation pressure

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Sub-Kelvin optical cooling of a micromechanical resonator

Article Abstract:

Active optical feedback cooling of a micromechanical resonator integrated with a high-quality optical resonator using only radiation pressure from room temperature to 135mK is demonstrated. It is also shown that this cooling method could be used in addition to traditional cryogenics to reach much lower temperatures near the ground state of a kHz oscillator.

Author: Bouwmeester, Dirk, Kleckenr, Dustin
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
Frequency response (Electrical engineering), Frequency response (Electronics)

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Cooling a nanomechanical resonator with quantum back-action

Article Abstract:

The computations of the back-action of a superconducting single-electron transistor (SSET) on a radio-frequency nanomechanical resonator are presented. The use of these back-action effects are anticipated to prepare ultracold and quantum states of mechanical structures, which would not be accessible with existing technology.

Author: Naik, A., Buu, O., LaHaye, M.D., Armour, A.D., Clerk, A.A., Blencowe, M.P., Schwab, K.C.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
Semiconductors and related devices, Semiconductor and Related Device Manufacturing, Superconductive Devices, Scanning electron microscopes, Superconducting devices, Structure

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Subjects list: Research, Usage, Quantum theory, Quantum mechanics, Cavity resonators, Mechanical properties
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