Results 21 to 30 of about 109,426 (275)

Decoherence and relaxation of a qubit coupled to an Ohmic bath directly and via an intermediate harmonic oscillator [PDF]

open access: yes, 2007
Using the numerical path integral method we investigate the decoherence and relaxation of qubits coupled to an Ohmic bath directly and via an intermediate harmonic oscillator (IHO).
Balzer   +34 more
core   +2 more sources

Autoparametric resonance of relaxation oscillations [PDF]

open access: yesZAMM, 2005
This paper deals with a coupled system of relaxation oscillators for free and damped vibrations. The author discusses the possibility of embedding the oscillator in an autoparametric system by coupling to a damped oscillator and analyzes the effects of the parametric modulation of the coupling on frequency responses and stability. The approach is based
Verhulst, F., Abadi
openaire   +4 more sources

High Sensitivity Magnetic Flux Sensors with Direct Voltage Readout Double Relaxation Oscillation SQUIDs [PDF]

open access: yes, 1994
The experimental sensitivity of double relaxation oscillation SQUIDs (DROSs) has been compared with theory and with the results obtained by numerical simulations.
Adelerhof, D.J.   +5 more
core   +2 more sources

The use of (double) relaxation oscillation SQUIDs as a sensor [PDF]

open access: yes, 1997
Relaxation Oscillation SQUIDs (ROSs) and Double Relaxation Oscillation SQUIDs (DROSs) are based on relaxation oscillations that are induced in hysteretic dc SQUIDs by an external L-R shunt. The relaxation frequency of a ROS varies with the applied flux Φ,
Brons, G.C.S.   +4 more
core   +2 more sources

Relaxation damping in oscillating contacts [PDF]

open access: yesScientific Reports, 2015
AbstractIf a contact of two purely elastic bodies with no sliding (infinite coefficient of friction) is subjected to superimposed oscillations in the normal and tangential directions, then a specific damping appears, that is not dependent on friction or dissipation in the material. We call this effect “relaxation damping”.
Popov, Mikhail   +2 more
openaire   +5 more sources

Smart SQUIDs based on Relaxation Oscillation SQUIDs [PDF]

open access: yes, 1998
Smart SQUIDs based on double Relaxation Oscillation SQUIDs (DROS) and a superconducting up-down counter have been developed. DROS and counter form a flux locked loop on one single chip. The DROS output consists of a series of pulses that controls the two
Brons, G.C.S.   +3 more
core   +2 more sources

Elucidation of mechanisms for stick slip melt fracture of polymer melt (Experimental analysis of unstable flow of high density polyethylene melt)

open access: yesNihon Kikai Gakkai ronbunshu, 2019
During polymer melt extrusion from a circular nozzle, the extrudate at low flow rate shows a stable linear shape with smooth surface but the extrudate at higher flow rate shows unstable shapes with spiral, rosary, or zig-zag structures.
Masao YAMAMOTO
doaj   +1 more source

Oscillation modes of dc microdischarges with parallel-plate geometry

open access: yes, 2011
Two different oscillation modes in microdischarge with parallel-plate geometry has been observed: relaxation oscillations with frequency range between 1.23 and 2.1 kHz and free-running oscillations with 7 kHz frequency.
Dragana Marić   +7 more
core   +1 more source

Quantum noise and dynamics in quantum well and quantum wire lasers [PDF]

open access: yes, 1984
We calculate the relaxation oscillation corner frequency fr and the linewidth enhancement factor alpha for both a quantum well and a quantum wire semiconductor laser.
Arakawa, Yasuhiko   +2 more
core   +1 more source

Thermally-induced transverse mode instability: Hopf bifurcation in high-power fiber laser

open access: yesResults in Physics, 2022
The thermally-induced transverse mode instability (TMI) has become a major challenge for further enhancing the output power of single-mode fiber laser.
Wei Gao   +5 more
doaj   +1 more source

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