Open AccessJournal Article
Sideband cooling micromechanical motion to the quantum ground state
Reads0
Chats0
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
More filters
Journal ArticleDOI
Direct Dispersive Monitoring of Charge Parity in Offset-Charge-Sensitive Transmons
Kyle Serniak,S. Diamond,M. Hays,Valla Fatemi,Shyam Shankar,Luigi Frunzio,Robert Schoelkopf,Michel Devoret +7 more
TL;DR: In this paper, the authors demonstrate a method of probing the decoherence induced by nonequilibrium superconducting quasiparticles, and show that improved filtering of quaiparticle-generating radiation can improve the energy-relaxation time.
Journal ArticleDOI
Work extraction from heat-powered quantized optomechanical setups
TL;DR: In contrast to laser-powered self-induced oscillations, work extraction from a broadband heat bath does not require coherence or phase-locking: an initial phase-averaged coherent state of the oscillator still yields work, as opposed to an initial Fock-state.
Journal ArticleDOI
Motion Control and Optical Interrogation of a Levitating Single Nitrogen Vacancy in Vacuum.
Gerard P. Conangla,Andreas W. Schell,Raúl A. Rica,Raúl A. Rica,Romain Quidant,Romain Quidant +5 more
TL;DR: By using a Paul trap, levitation in vacuum and center-of-mass feedback cooling of a nanodiamond hosting a single nitrogen-vacancy center is demonstrated and the achieved level of motion control enables us to optically interrogate and characterize the emitter response.
Journal ArticleDOI
Quantum-enhanced micromechanical displacement sensitivity.
Ulrich Busk Hoff,Glen I. Harris,Lars S. Madsen,Hugo Kerdoncuff,Mikael Lassen,Bo Melholt Nielsen,Warwick P. Bowen,Ulrik L. Andersen +7 more
TL;DR: Measurement of the transduced phase modulation signal in the frequency range 4-5.8 MHz with a sensitivity -0.72(±0.01) dB below the shot noise level is experimentally demonstrated.
Journal ArticleDOI
Nonlinear Radiation Pressure Dynamics in an Optomechanical Crystal
Alexander G. Krause,Jeff T. Hill,Jeff T. Hill,Max Ludwig,Amir H. Safavi-Naeini,Amir H. Safavi-Naeini,Jasper Fuk-Woo Chan,Florian Marquardt,Florian Marquardt,Oskar Painter +9 more
TL;DR: An analytical model incorporating thermo-optic effects due to optical absorption heating is developed and found to accurately predict the measured device behavior.
References
More filters
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.
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.