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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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Generation of Fock states and qubits in periodically pulsed nonlinear oscillators
TL;DR: In this paper, the authors demonstrate a quantum regime of dissipative nonlinear oscillators where the creation of Fock states as well as the superpositions of fock states are realized for time intervals exceeding the characteristic decoherence time.
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Steady-state entanglement, cooling, and tristability in a nonlinear optomechanical cavity
TL;DR: In this paper, the interaction of a singlemode field with both a weak Kerr medium and a parametric nonlinearity in an intrinsically nonlinear optomechanical system is studied, and it is shown that in the system under consideration the degree of entanglement between the mechanical and optical modes is dependent on the two stability parameters of the system.
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Spin detection with a micromechanical trampoline: towards magnetic resonance microscopy harnessing cavity optomechanics
Ran Fischer,Ran Fischer,Ran Fischer,Dylan P. McNally,Dylan P. McNally,Chris Reetz,Chris Reetz,Gabriel G. T. Assumpcao,Gabriel G. T. Assumpcao,Thomas R. Knief,Thomas R. Knief,Yiheng Lin,Yiheng Lin,Cindy Regal,Cindy Regal +14 more
TL;DR: In this article, a trampoline membrane resonator with a quality above 106 and an order of magnitude lower mass than a comparable standard membrane resonators was used for magnetic resonance force microscopy (MRFM).
Journal ArticleDOI
Radiation Pressure Cooling as a Quantum Dynamical Process.
TL;DR: This work treats cooling as a dynamical process of driving the mechanical oscillator from its initial thermal state, due to its thermal equilibrium with the environment, to a stabilized quantum state of higher purity, and finds that the stabilized thermal phonon number left in the end actually depends on how fast the cooling process could be.
Journal ArticleDOI
Controllability of optical bistability, cooling and entanglement in hybrid cavity optomechanical systems by nonlinear atom-atom interaction
TL;DR: In this article, the authors investigated the effects of atomic collisions as well as optomechanical mirror-field coupling on the optical bistability in a hybrid system consisting of a Bose-Einstein condensate inside a driven optical cavity with a moving end mirror.
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.
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.