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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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Journal ArticleDOI
Cooling of a Mechanical Oscillator and Normal Mode Splitting in Optomechanical Systems with Coherent Feedback
Sumei Huang,Aixi Chen +1 more
TL;DR: In this paper, the authors show that the resolved-sideband cooling of a mechanical oscillator in an optomechanical system can be enhanced by a simple coherent feedback scheme, in which a portion of the output field from the cavity is fed back into the cavity using an asymmetric beam splitter.
Journal ArticleDOI
Low-Loss Optomechanical Oscillator for Quantum-Optics Experiments
Antonio Borrielli,A. Pontin,Francesco Saverio Cataliotti,Francesco Saverio Cataliotti,L. Marconi,Francesco Marin,Francesco Marin,Francesco Marino,Gregory Pandraud,G. A. Prodi,G. A. Prodi,Enrico Serra,Enrico Serra,Enrico Serra,Michele Bonaldi +14 more
TL;DR: In this article, an oscillating micromirror with mechanical quality factors Q up to 1.2×106 at cryogenic temperature and optical losses lower than 20 ppm is presented, specifically designed to ease the detection of ponderomotive squeezing at frequencies of about 100 kHz.
Journal ArticleDOI
Controllable strong coupling between individual spin qubits and a transmission line resonator via nanomechanical resonators
Ming Gao,Ming Gao,Chun-Wang Wu,Zhi-Jiao Deng,Wen-Jie Zou,Li-gong Zhou,Cheng-Zu Li,Xiang-Bin Wang +7 more
TL;DR: In this paper, a hybrid quantum system where an individual electronic spin qubit and a transmission line resonator (TLR) are connected by a nanomechanical resonator was investigated, and the possibility of realizing a strong coupling between the EQ and the TLR was analyzed.
Journal ArticleDOI
Cavity nano-optomechanics in the ultrastrong coupling regime with ultrasensitive force sensors
Francesco Fogliano,Benjamin Besga,Antoine Reigue,Philip Heringlake,Laure Mercier de Lépinay,Cyril Vaneph,Jakob Reichel,Benjamin Pigeau,Olivier Arcizet +8 more
TL;DR: In this article, the authors investigate the optomechanical interaction of an ultrasensitive suspended nanowire inserted in a fiber-based microcavity mode, where one single intracavity photon can displace the oscillator by more than its zero point fluctuations.
Journal ArticleDOI
Generation and detection of gigahertz acoustic oscillations in thin membranes
Martin Schubert,Martin Grossmann,Chuan He,Delia Brick,Patricia Scheel,Oliver Ristow,Vitalyi Gusev,Thomas Dekorsy +7 more
TL;DR: It is shown that a short absorption length for the pump pulse leads to the generation of coherent high frequency phonons up to several 100 GHz frequencies and two-layer membrane systems offer additional insight into energy transfer in the GHz frequency range and adhesion properties.
References
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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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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.