Results 131 to 140 of about 10,495 (249)

Ultrahigh‐Order Harmonic Mode‐Locked Optoelectronic Oscillator

open access: yesLaser &Photonics Reviews, EarlyView.
This article demonstrates a record‐breaking microwave frequency comb generator using an ultrahigh‐harmonic‐order mode‐locked optoelectronic oscillator. By integrating dual recirculating loops into a low‐coherence system, the researchers achieved a harmonic order of 956 with superior noise suppression.
Zhuoran Wang   +3 more
wiley   +1 more source

A linear chaotic quantum harmonic oscillator

open access: yes, 1999
We show that a linear quantum harmonic oscillator is chaotic in the sense of Li-Yorke. We also prove that the weighted backward shift map (used as an infinite-dimensional linear chaos model) in a separable Hilbert space is chaotic in the sense of Li ...
P.-D. Liu   +7 more
core   +1 more source

Superintegrable Oscillator and Kepler Systems on Spaces of Nonconstant Curvature via the Stäckel Transform

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
The Stäckel transform is applied to the geodesic motion on Euclidean space, through the harmonic oscillator and Kepler-Coloumb potentials, in order to obtain maximally superintegrable classical systems on N-dimensional Riemannian spaces of nonconstant ...
Ángel Ballesteros   +4 more
doaj   +1 more source

Loop Quantum Photonic Chip for Coherent Multi‐Time‐Step Evolution

open access: yesLaser &Photonics Reviews, EarlyView.
A loop quantum photonic chip (Loop‐QPC) enabling efficient multi‐step quantum simulation in a single run is demonstrated. Combining recirculating loops with cycle‐or‐measure control, Loop‐QPC eliminates repeated reprogramming and reduces loss. Experimental demonstration of three‐step unitary evolution confirms high‐fidelity operation, showcasing the ...
Yuancheng Zhan   +9 more
wiley   +1 more source

Quantum kicked harmonic oscillator in contact with a heat bath

open access: yes, 2017
We consider the quantum harmonic oscillator in contact with a finite-temperature bath, modeled by the Caldeira-Leggett master equation. Applying periodic kicks to the oscillator, we study the system in different dynamical regimes between classical ...
T. Gorin   +5 more
core   +1 more source

Resonant States Reveal Strong Light–Matter Coupling in Nanophotonic Cavities

open access: yesLaser &Photonics Reviews, EarlyView.
Photonic resonant states reveal characteristics of coupled light–matter systems that would otherwise be hidden by damping. Their trajectories (when tuning the optical resonance) undergo a qualitative change at the onset of strong coupling: They start swapping positions.
Jan David Fischbach   +5 more
wiley   +1 more source

The Intricate Sabatier Optimality of Anion Electroreduction and Its Consequences for Nitrate Reduction

open access: yesAngewandte Chemie, Volume 138, Issue 26, 22 June 2026.
The Sabatier principle and volcano plots declare that optimal electrocatalysis is found in the middle between strong and weak binding of key intermediates. However, it is shown here that during anion electroreduction, strong and weak binding are potential‐dependent concepts and volcanoes are mobile.
Mattia Salomone   +2 more
wiley   +2 more sources

Hybrid coherent control of magnons in a ferromagnetic phononic resonator excited by laser pulses

open access: yesPhysical Review Research
We propose and demonstrate the concept of hybrid coherent control (CC) whereby a quantum or classical harmonic oscillator is excited by two excitations: one is quasiharmonic (i.e., harmonic with a finite lifetime) and the other is a pulsed broadband ...
Alexey V. Scherbakov   +8 more
doaj   +1 more source

Quantum Recurrent Neural Networks: Predicting the Dynamics of Oscillatory and Chaotic Systems

open access: yesAlgorithms
In this study, we investigate Quantum Long Short-Term Memory and Quantum Gated Recurrent Unit integrated with Variational Quantum Circuits in modeling complex dynamical systems, including the Van der Pol oscillator, coupled oscillators, and the Lorenz ...
Yuan Chen, Abdul Khaliq
doaj   +1 more source

The quantum harmonic oscillator (I)

open access: yes, 2016
En la charla se discutieron aspectos básicos sobre los estados coherentes del oscilador armónico. Se hizo especial hincapié en los aspectos matemáticos del problema.
openaire   +2 more sources

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