Open AccessJournal Article
Sideband cooling micromechanical motion to the quantum ground state
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TLDR
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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Book ChapterDOI
Quantum Control of Optomechanical Systems
TL;DR: In this article, an optomechanical teleportation scheme was proposed to transfer an arbitrary quantum state from a traveling-wave light pulse onto the mechanical system. But the teleportation scheme only works in continuous-wave and pulsed regimes.
Journal ArticleDOI
Nonreciprocal Transport Based on Cavity Floquet Modes in Optomechanics.
TL;DR: This microwave-optomechanical experiment shows how to configure nonreciprocal transport between frequency components of a single superconducting cavity coupled to two drumhead oscillators, and uncovers a new type of instability specific to non reciprocal coupling.
DissertationDOI
Cavity optomechanics with feedback and fluids
TL;DR: In this article, the authors proposed a real-time estimation strategy that invalidates the use of linear feedback to enhance the performance of linear optomechanical sensors. But, their method is limited to the case of a single quadrature and cannot be applied to any arbitrary feedback protocol.
Journal ArticleDOI
Quantum-correlation-enhanced weak-field detection in an optomechanical system
TL;DR: In this paper, a theoretical scheme was proposed to enhance the signal-to-noise ratio in ultrasound detection by quantum correlation in a composite optomechanical system, where an auxiliary oscillator and treating it as an added probe for weak-field detection was introduced.
Journal ArticleDOI
Quantum theory of the dissipative Josephson parametric amplifier
TL;DR: Introducing a phenomenological multi-photon coupling approach, saturation of the amplified signal is ensured and the time evolution of the signal and noise energy is calculated and numerically evaluated for a specific example.
References
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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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.