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Sideband cooling micromechanical motion to the quantum ground state
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In this article, a microwave cavity optomechanical system was realized by coupling the motion of an aluminum membrane to the resonance frequency of a superconducting circuit, and damping and cooling the membrane motion with radiation pressure forces.Abstract:
Accessing the full quantum nature of a macroscopic mechanical oscillator first requires elimination of its classical, thermal motion. The flourishing field of cavity optomechanics provides a nearly ideal architecture for both preparation and detection of mechanical motion at the quantum level. We realize a microwave cavity optomechanical system by coupling the motion of an aluminum membrane to the resonance frequency of a superconducting circuit [1]. By exciting the microwave circuit below its resonance frequency, we damp and cool the membrane motion with radiation pressure forces, analogous to laser cooling of the motion of trapped ions. The microwave excitation serves not only to cool, but also to monitor the displacement of the membrane. A nearly shot-noise limited, Josephson parametric amplifier is used to detect the mechanical sidebands of this microwave excitation and quantify the thermal motion as it is cooled with radiation pressure forces to its quantum ground state [2].read more
Citations
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High frequency optomechanical disk resonators in III-V ternary semiconductors
TL;DR: In this article, the authors investigate TPA-free III-V semiconductor materials for optomechanics applications: GaAs lattice-matched In 0:5Ga0:5P and Al 0:4Ga 0:6As.
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Opto-Mechanical Photonic Crystal Cavities for Sensing Application
TL;DR: In this article, the authors introduce basic physical concepts of opto-mechanical photonic crystal (PhC) cavities and describe typical experimental systems for sensing applications, which offer unprecedented opportunities to develop labon-a-chip devices and witness a promising prospect to further manipulate light propagation in the nanophotonics.
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Second-order sideband effects mediated by microwave in hybrid electro-optomechanical systems
TL;DR: In this paper, the second-order sideband effects in a hybrid electro-optomechanical system were theoretically investigated, and mainly focused on the influence of the microwave signal on the second order sideband generation.
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Intracavity-squeezed optomechanical cooling
TL;DR: In this article, an idea to break the quantum backaction limit by engineering intracavity optical squeezing is presented, which gives rise to quantum interference for all the dissipation channels, and under certain circumstances can totally remove the influence of the cavity dissipation and the resultant quantum back action, with much lower cooling limit irrespective of the sideband resolution.
Journal ArticleDOI
Design of tunable GHz-frequency optomechanical crystal resonators.
TL;DR: In this article, a silicon optomechanical nanobeam design with a dynamically tunable acoustic mode at 10.2 GHz was presented, where the resonance frequency can be shifted by 90 kHz/V2 with an on-chip capacitor that was optimized to exert forces up to 1 µN at 10 V operation voltage.
References
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Journal ArticleDOI
Observation of Bose-Einstein Condensation in a Dilute Atomic Vapor
TL;DR: A Bose-Einstein condensate was produced in a vapor of rubidium-87 atoms that was confined by magnetic fields and evaporatively cooled and exhibited a nonthermal, anisotropic velocity distribution expected of the minimum-energy quantum state of the magnetic trap in contrast to the isotropic, thermal velocity distribution observed in the broad uncondensed fraction.
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Quantum ground state and single-phonon control of a mechanical resonator
A. D. O’Connell,Max Hofheinz,Markus Ansmann,Radoslaw C. Bialczak,M. Lenander,Erik Lucero,Matthew Neeley,Daniel Sank,Haohua Wang,Martin Weides,James Wenner,John M. Martinis,Andrew Cleland +12 more
TL;DR: This work shows that conventional cryogenic refrigeration can be used to cool a mechanical mode to its quantum ground state by using a microwave-frequency mechanical oscillator—a ‘quantum drum’—coupled to a quantum bit, which is used to measure the quantum state of the resonator.
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Cavity Optomechanics: Back-Action at the Mesoscale
TL;DR: Recent experiments have reached a regime where the back-action of photons caused by radiation pressure can influence the optomechanical dynamics, giving rise to a host of long-anticipated phenomena.
Journal ArticleDOI
Introduction to quantum noise, measurement, and amplification
TL;DR: In this paper, a pedagogical introduction to the physics of quantum noise and its connections to quantum measurement and quantum amplification is given, and the basics of weak continuous measurements are described.
Journal ArticleDOI
Optomechanically Induced Transparency
Stefan Weis,R. Riviere,Samuel Deléglise,E. Gavartin,Olivier Arcizet,Albert Schliesser,Tobias J. Kippenberg +6 more
TL;DR: Electromagnetically induced transparency in an optomechanical system whereby the coupling of a cavity to a light pulse is used to control the transmission of light through the cavity may help to allow the engineering of light storage and routing on an optical chip.