Discrete rotating waves in a ring of coupled mechanical oscillators with strong damping

2009 ◽  
Vol 50 (5) ◽  
pp. 052701
Author(s):  
Wen-Xin Qin ◽  
Pei-Lin Zhang
Keyword(s):  
Rotating Waves ◽  
Strong Damping ◽  
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

Electrostatic calibration of mechanical oscillators

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

Resonant excitation of rotating waves in annular zones

2020 ◽  
pp. 30-38
Author(s):  
E.D. Sviyazheninov
Keyword(s):  
Natural Frequency ◽  
Resonant Excitation ◽  
Acoustic Vibrations ◽  
Rotating Waves ◽  
Vibration Treatment ◽  
Working Medium ◽  
Annular Zone

A method and a device are developed for exciting powerful resonant acoustic rotating waves in a gaseous or liquid flowing working medium located in the annular zone between the rotor and stator, for its vibration treatment. Keywords: vibration treatment, vibrations, natural frequency, vibration form, waves, acoustic vibrations, resonance. [email protected]

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