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The noise from laser phase fluctuation sets a major technical obstacle to cool the nano-mechanical oscillators to the quantum region. We propose a cooling configuration based on the opto-mechanical coupling with two cavity modes to…

Quantum Physics · Physics 2009-09-14 Zhang-qi Yin

The strong light-matter optomechanical coupling offered by Coherent Scattering (CS) set-ups have allowed the experimental realisation of quantum ground state cavity cooling of the axial motion of a levitated nanoparticle [U. Deli\'{c} et…

Quantum Physics · Physics 2021-04-27 Marko Toroš , Uroš Delić , Fagin Hales , Tania S. Monteiro

We propose a method to entangle two distant vibrating microsize mirrors (i.e., mechanical oscillators) in a cavity optomechanical system. In this scheme, we discuss both the resonant and large-detuning conditions, and show that the…

Quantum Physics · Physics 2017-03-01 Zhi-Rong Zhong , Xin Wang , Wei Qin , Chui-Ping Yang , Adam Miranowicz , Franco Nori

Conventional techniques for laser cooling, by coherent scattering off of internal states or through an optical cavity mode, have so far proved inefficient on mechanical oscillators heavier than a few nanograms. That is because larger…

Quantum Physics · Physics 2022-05-05 Kentaro Komori , Dominika Ďurovčíková , Vivishek Sudhir

Mechanical oscillators can be cooled by coupling them to an optical or microwave cavity. Going beyond the standard quantum noise approach we find an analytic expression for the steady-state phonon number in systems where the position of the…

Quantum Physics · Physics 2013-08-28 Talitha Weiss , Andreas Nunnenkamp

We analyze the performance of optomechanical cooling of a mechanical resonator in the presence of a degenerate optical parametric amplifier within the optomechanical cavity, which squeezes the cavity light. We demonstrate that this allows…

Quantum Physics · Physics 2019-12-18 Muhammad Asjad , Najmeh Etehadi Abari , Stefano Zippilli , David Vitali

In this paper we present a model for the kinematics and dynamics of optomechanics which describe the coupling between an optical field, here modeled by a massless scalar field, and the internal (e.g., determining its reflectivity) and…

Quantum Physics · Physics 2013-05-01 Chad R. Galley , Ryan O. Behunin , B. L. Hu

We theoretically study a cavity filled with atoms, which provides the optical-mechanical interaction between the modified cavity photonic field and a movable mirror at one end. We show that the cavity field ``dresses'' these atoms,…

Quantum Physics · Physics 2009-02-16 H. Ian , Z. R. Gong , Yu-xi Liu , C. P. Sun , Franco Nori

We present an experimental study of dynamical back-action cooling of the fundamental vibrational mode of a thin semitransparent membrane placed within a high-finesse optical cavity. We study how the radiation pressure interaction modifies…

Quantum Physics · Physics 2012-10-08 M. Karuza , C. Molinelli , M. Galassi , C. Biancofiore , R. Natali , P. Tombesi , G. Di Giuseppe , D. Vitali

We study an optomechanical system in which the mechanical motion of a single trapped ion is coupled to a cavity field for the realization of a strongly quantum correlated two-mode system. We show that for large pump intensities the steady…

Quantum Physics · Physics 2016-04-20 Aranya B. Bhattacherjee

According to quantum mechanics, if we keep observing a continuous variable we generally disturb its evolution. For a class of observables, however, it is possible to implement a so-called quantum nondemolition measurement: by confining the…

Quantum Physics · Physics 2018-05-30 A. Pontin , M. Bonaldi , A. Borrielli , L. Marconi , F. Marino , G. Pandraud , G. A. Prodi , P. M. Sarro , E. Serra , F. Marin

In cavity optomechanics, light is used to control mechanical motion. A central goal of the field is achieving single-photon strong coupling, which would enable the creation of quantum superposition states of motion. Reaching this limit…

Mesoscale and Nanoscale Physics · Physics 2015-10-19 Mingyun Yuan , Vibhor Singh , Yaroslav M. Blanter , Gary A. Steele

Quantum entanglement in mechanical systems is not only a key signature of macroscopic quantum effects, but has wide applications in quantum technologies. Here we proposed an effective approach for creating strong steady-state entanglement…

Quantum Physics · Physics 2017-12-27 Mei Wang , Xin-You Lü , Ying-Dan Wang , J. Q. You , Y. Wu

In this paper we study a system consisting of two nearly degenerate mechanical modes that couple to a single mode of an optical cavity. We show that this coupling leads to nearly complete (99.5%) hybridization of the two mechanical modes…

We study a quantum model of dynamical Casimir effect in an optical cavity enclosed by a freely moving mirror attached to a harmonic spring. The quantum fluctuations of the friction force exerted by the dynamical Casimir emission onto the…

Quantum Physics · Physics 2020-01-29 Salvatore Butera , Iacopo Carusotto

We study theoretically the dynamics of multiple mechanical oscillators coupled to a single cavity field mode via linear or quadratic optomechanical interactions. We focus specifically on the strong coupling regime where the cavity decays…

Quantum Physics · Physics 2014-01-14 H. Seok , L. F. Buchmann , E. M. Wright , P. Meystre

Diamond cavity optomechanical devices hold great promise for quantum technology based on coherent coupling between photons, phonons and spins. These devices benefit from the exceptional physical properties of diamond, including its low…

We describe an experiment in which a mirror is cooled by the radiation pressure of light. A high-finesse optical cavity with a mirror coated on a mechanical resonator is used as an optomechanical sensor of the Brownian motion of the mirror.…

Quantum Physics · Physics 2009-10-31 P. F. Cohadon , A. Heidmann , M. Pinard

Methods for controlling the motion of single particles, optically levitated in vacuum, have developed rapidly in recent years. The technique of cold damping makes use of feedback-controlled, electrostatic forces to increase dissipation…

Standard optomechanical cooling methods ideally require weak coupling and cavity damping rates which enable the motional sidebands to be well resolved. If the coupling is too large then sideband-resolved cooling is unstable or the rotating…

Quantum Physics · Physics 2020-11-05 Bijita Sarma , Thomas Busch , Jason Twamley
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