Electrostatic calibration of mechanical oscillators

1987 ◽  
Vol 30 (5) ◽  
pp. 497-500
Author(s):  
V. N. Maksimov
Keyword(s):  
Mechanical Oscillators

scholarly journals Semi-Classical Localisation Properties of Quantum Oscillators on a Noncommutative Configuration Space

2015 ◽  
Vol 22 (04) ◽  
pp. 1550021 ◽  
Author(s):  
Fabio Benatti ◽  
Laure Gouba
Keyword(s):  
Phase Space ◽  
Configuration Space ◽  
Classical Limit ◽  
Coherent States ◽  
Point Of View ◽  
Quantum Mechanical ◽  
Wigner Functions ◽  
Quantum Mechanical Oscillators ◽  
Mechanical Oscillators ◽  
Space Noncommutativity

When dealing with the classical limit of two quantum mechanical oscillators on a noncommutative configuration space, the limits corresponding to the removal of configuration-space noncommutativity and position-momentum noncommutativity do not commute. We address this behaviour from the point of view of the phase-space localisation properties of the Wigner functions of coherent states under the two limits.

scholarly journals Spin-Mechanics with Nitrogen-Vacancy Centers and Trapped Particles

Micromachines ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 651
Author(s):  
Maxime Perdriat ◽  
Clément Pellet-Mary ◽  
Paul Huillery ◽  
Loïc Rondin ◽  
Gabriel Hétet
Keyword(s):  
Degrees Of Freedom ◽  
Theoretical Background ◽  
Nitrogen Vacancy ◽  
Full Potential ◽  
Strongly Coupled ◽  
Trapped Particles ◽  
Quantum Regime ◽  
Atomic Spins ◽  
Nitrogen Vacancy Centers ◽  
Mechanical Oscillators

Controlling the motion of macroscopic oscillators in the quantum regime has been the subject of intense research in recent decades. In this direction, opto-mechanical systems, where the motion of micro-objects is strongly coupled with laser light radiation pressure, have had tremendous success. In particular, the motion of levitating objects can be manipulated at the quantum level thanks to their very high isolation from the environment under ultra-low vacuum conditions. To enter the quantum regime, schemes using single long-lived atomic spins, such as the electronic spin of nitrogen-vacancy (NV) centers in diamond, coupled with levitating mechanical oscillators have been proposed. At the single spin level, they offer the formidable prospect of transferring the spins’ inherent quantum nature to the oscillators, with foreseeable far-reaching implications in quantum sensing and tests of quantum mechanics. Adding the spin degrees of freedom to the experimentalists’ toolbox would enable access to a very rich playground at the crossroads between condensed matter and atomic physics. We review recent experimental work in the field of spin-mechanics that employ the interaction between trapped particles and electronic spins in the solid state and discuss the challenges ahead. Our focus is on the theoretical background close to the current experiments, as well as on the experimental limits, that, once overcome, will enable these systems to unleash their full potential.

scholarly journals From metaphors to equations: How can we find the good ones?

2000 ◽  
Vol 23 (3) ◽  
pp. 409-410
Author(s):  
Gottfried Mayer-Kress
Keyword(s):  
Boundary Conditions ◽  
Forest Fire ◽  
Water Waves ◽  
Standing Waves ◽  
Musical Instruments ◽  
Oscillator Model ◽  
Mechanical Oscillator ◽  
Target Article ◽  
Mechanical Oscillators

Among the metaphors used in the target article are “musical instruments,” “water waves,” and other types of mechanical oscillators. The corresponding equations have inertial properties and lead to standing waves that depend on boundary conditions. Other, physiologically relevant quantities like refractory times are not contained in the mechanical oscillator model but occur naturally, for instance, in biological forest fire metaphors.

Analysis of the “Push–pull” Capacitance Bridge Circuit for Comb-Drive Micro-electro-mechanical Oscillators

2015 ◽  
Vol 183 (3-4) ◽  
pp. 313-319 ◽  
Author(s):  
P. Zheng ◽  
W. G. Jiang ◽  
C. S. Barquist ◽  
Y. Lee ◽  
H. B. Chan
Keyword(s):  
Bridge Circuit ◽  
Comb Drive ◽  
Capacitance Bridge ◽  
Mechanical Oscillators

Energy transfer and motion synchronization between mechanical oscillators through microhydrodynamic coupling

2017 ◽  
Vol 29 (3) ◽  
pp. 032005
Author(s):  
Yu Wan ◽  
Kai Jin ◽  
Talha J. Ahmad ◽  
Michael J. Black ◽  
Zhiping Xu
Keyword(s):  
Energy Transfer ◽  
Mechanical Oscillators ◽  
Motion Synchronization

scholarly journals ASSESSMENT OF DYNAMIC FEATURES OF MECHANICAL OSCILLATORS FOR A ROOT-BALLING MACHINE WITH A VIBRATING BLADE

2009 ◽  
Vol 40 (4) ◽  
pp. 1
Author(s):  
Dario Friso ◽  
Marco Bietresato
Keyword(s):  
Theoretical Analysis ◽  
Motion Analysis ◽  
Dynamic Features ◽  
Mechanical Oscillator ◽  
Strong Phase ◽  
Harmonic Motion ◽  
Phase Displacement ◽  
Air Motion ◽  
Mechanical Oscillators ◽  
Oscillating Motion

A theoretical analysis of the oscillating motion produced by a mechanical oscillator for the vibrating blade of a root-balling machine was carried out. The result was harmonic motion with a strong phase displacement with respect to the forcing torque of the eccentric masses; however, the amplitude can be approximately calculated by in-air motion analysis. Experiments were also carried out in order to determine the cutting torque of the blade in typical treenursery soil. These results, together with the indications of other literature reports, were used to propose a possible design directive.

scholarly journals Simultaneous cooling of coupled mechanical oscillators using whispering gallery mode resonances

2016 ◽  
Vol 24 (2) ◽  
pp. 1392 ◽  
Author(s):  
Ying Lia Li ◽  
James Millen ◽  
P. F. Barker
Keyword(s):  
Whispering Gallery Mode ◽  
Whispering Gallery ◽  
Mechanical Oscillators

scholarly journals Stabilized entanglement of massive mechanical oscillators

Nature ◽  
2018 ◽  
Vol 556 (7702) ◽  
pp. 478-482 ◽  
Author(s):  
C. F. Ockeloen-Korppi ◽  
E. Damskägg ◽  
J.-M. Pirkkalainen ◽  
M. Asjad ◽  
A. A. Clerk ◽  
...  
Keyword(s):  
Mechanical Oscillators

scholarly journals Observation of nonlinear dynamics in an optical levitation system

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Jinyong Ma ◽  
Jiayi Qin ◽  
Geoff T. Campbell ◽  
Giovanni Guccione ◽  
Ruvi Lecamwasam ◽  
...  
Keyword(s):  
Optical Cavity ◽  
Mechanical Quality Factor ◽  
Optical Field ◽  
Free Standing ◽  
Levitation System ◽  
Active Feedback ◽  
Sideband Generation ◽  
Optical Levitation ◽  
Mechanical Oscillators ◽  
Lift Off

Abstract Optical levitation of mechanical oscillators has been suggested as a promising way to decouple the environmental noise and increase the mechanical quality factor. Here, we investigate the dynamics of a free-standing mirror acting as the top reflector of a vertical optical cavity, designed as a testbed for a tripod cavity optical levitation setup. To reach the regime of levitation for a milligram-scale mirror, the optical intensity of the intracavity optical field approaches 3 MW cm−2. We identify three distinct optomechanical effects: excitation of acoustic vibrations, expansion due to photothermal absorption, and partial lift-off of the mirror due to radiation pressure force. These effects are intercoupled via the intracavity optical field and induce complex system dynamics inclusive of high-order sideband generation, optical bistability, parametric amplification, and the optical spring effect. We modify the response of the mirror with active feedback control to improve the overall stability of the system.

scholarly journals Interaction of Mechanical Oscillators Mediated by the Exchange of Virtual Photon Pairs

2019 ◽  
Vol 122 (3) ◽  
Author(s):  
Omar Di Stefano ◽  
Alessio Settineri ◽  
Vincenzo Macrì ◽  
Alessandro Ridolfo ◽  
Roberto Stassi ◽  
...  
Keyword(s):  
Virtual Photon ◽  
Photon Pairs ◽  
Mechanical Oscillators
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