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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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Quantum-coherent coupling of a mechanical oscillator to an optical cavity mode
Ewold Verhagen,Samuel Deléglise,Stefan Weis,Stefan Weis,Albert Schliesser,Albert Schliesser,Tobias J. Kippenberg,Tobias J. Kippenberg +7 more
TL;DR: This optomechanical system establishes an efficient quantum interface between mechanical oscillators and optical photons, which can provide decoherence-free transport of quantum states through optical fibres and offers a route towards the use of mechanical oscillator states as quantum transducers or in microwave-to-optical quantum links.
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Quantum technologies with hybrid systems
Gershon Kurizki,Patrice Bertet,Yuimaru Kubo,Klaus Mølmer,David Petrosyan,David Petrosyan,Peter Rabl,Jörg Schmiedmayer +7 more
TL;DR: Some of the driving theoretical ideas and first experimental realizations of hybrid quantum systems and the opportunities and challenges they present are reviewed and offers a glance at the near- and long-term perspectives of this fascinating and rapidly expanding field.
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Bidirectional and efficient conversion between microwave and optical light
R. W. Andrews,R. W. Peterson,T. P. Purdy,Katarina Cicak,Raymond W. Simmonds,Cindy Regal,Konrad Lehnert,Konrad Lehnert +7 more
TL;DR: In this paper, an optomechanical system that converts microwaves to optical frequency light and vice versa is demonstrated, achieving a conversion efficiency of approximately 10% in terms of energy consumption.
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Nanomechanical coupling between microwave and optical photons
TL;DR: In this paper, a nanomechanical interface between optical photons and microwave electrical signals is demonstrated by parametric electro-optical coupling in a piezoelectric optical crystal, and this on-chip technology could form the basis of photonic networks of superconducting quantum bits.
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Probing Planck-scale physics with quantum optics
Igor Pikovski,Michael R. Vanner,Markus Aspelmeyer,Myungshik Kim,Časlav Brukner,Časlav Brukner +5 more
TL;DR: In this article, a quantum optical control and readout of a quantum oscillator with a mass close to the Planck mass is used to explore possible deviations from the quantum commutation relation.
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.
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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.