Results 71 to 80 of about 7,689 (210)

Rare quantum metastable states in the strongly dispersive Jaynes-Cummings oscillator [PDF]

open access: yes, 2018
We present evidence of metastable rare quantum-fluctuation switching for the driven dissipative Jaynes-Cummings oscillator coupled to a zero-temperature bath in the strongly dispersive regime.
Asari, U.   +5 more
core   +3 more sources

Accuracy Estimation of the Numerical Solutions for Chaotic Regime of the Pendulum With External and Parametric Excitation

open access: yesJournal of Applied Mathematics, Volume 2026, Issue 1, 2026.
This study involves the development of a framework for checking the accuracy of built‐in algorithms from Mathcad software. The built‐in algorithms used inside Mathcad software include Runge–Kutta method of the fourth order (RK4), Adams method, backward differential formula, AdamsBDF, Radau, Bulstoer, Stiffr, and Stiffb methods.
M. C. Kekana   +5 more
wiley   +1 more source

Tunable Broadband Transparency of Macroscopic Quantum Superconducting Metamaterials [PDF]

open access: yes, 2015
Narrow-band invisibility in an otherwise opaque medium has been achieved by electromagnetically induced transparency (EIT) in atomic systems. The quantum EIT behaviour can be classically mimicked by specially engineered metamaterials via carefully ...
Anlage, Steven. M.   +3 more
core   +3 more sources

Aggregation‐Induced Triplet Symmetry‐Breaking Charge Separation Drives Electron Transfer for Autophagy Blockade‐Enhanced Type‐I Photodynamic Therapy

open access: yesAggregate, Volume 6, Issue 12, December 2025.
This study presents a novel class of cyanine‐based photosensitizers (PS) to achieve controllable switching between Type‐I and Type‐II mechanisms during photodynamic therapy. The formation of radical ion pairs (PS•+−PS•−) via symmetry‐breaking charge separation in aggregated systems at the triplet state, triggering Type‐I cascade reactions for effective
Xin Li   +12 more
wiley   +1 more source

Analysis of a duffing oscillator that exhibits hysteresis with varying excitation frequency and amplitude [PDF]

open access: yes, 2007
Hysteresis, or jump phenomenon, are a common and severe nonlinear behaviour associated with the Duffing oscillator and the multi-valued properties of the response solution.
Billings, S.A., Li, L.M.
core   +1 more source

Statistical linearization based estimation of the peak response of nonlinear systems subject to the EC8 design spectrum [PDF]

open access: yes, 2008
A stochastic approach is proposed to obtain reliable estimates of the peak response of nonlinear systems to excitations specified via a response∕design seismic spectrum.
Giaralis, A., Spanos, P. D.
core   +1 more source

Dynamic quantum tunneling in mesoscopic driven Duffing oscillators [PDF]

open access: yesPhysical Review E, 2011
We investigate the dynamic quantum tunneling between two attractors of a mesoscopic driven Duffing oscillator. We find that, in addition to inducing remarkable quantum shift of the bifurcation point, the mesoscopic nature also results in a perfect linear scaling behavior for the tunneling rate with the driving distance to the shifted bifurcation point.
Guo, Lingzhen   +3 more
openaire   +4 more sources

Integration of Base Excitation With Non‐Linear Coupling Within the Multiharmonic Balance Method

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 25, Issue 4, December 2025.
ABSTRACT This study presents the implementation of linear and nonlinear base excitation within the Multiharmonic Balance framework. Two nonlinear approaches are explored: the introduction of relative coordinates and the direct inclusion of nonlinear base excitation as a nonlinear force. This is complemented by the derivation of the analytical Jacobian.
Tido Kubatschek   +3 more
wiley   +1 more source

Heteroclinic Bifurcation Behaviors of a Duffing Oscillator with Delayed Feedback

open access: yesShock and Vibration, 2018
The heteroclinic bifurcation and chaos of a Duffing oscillator with forcing excitation under both delayed displacement feedback and delayed velocity feedback are studied by Melnikov method.
Shao-Fang Wen, Ju-Feng Chen, Shu-Qi Guo
doaj   +1 more source

Reference Tracking and Disturbance Rejection for Nonlinear Systems Using LPV Control

open access: yesInternational Journal of Robust and Nonlinear Control, Volume 35, Issue 18, Page 7748-7766, December 2025.
ABSTRACT The Linear Parameter‐Varying (LPV) framework has been introduced with the intention to provide stability and performance guarantees for analysis and controller synthesis for Nonlinear (NL) systems through convex methods. By extending results of the Linear Time‐Invariant framework, mainly based on quadratic stability and performance using ...
Patrick J. W. Koelewijn   +3 more
wiley   +1 more source

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