Results 11 to 20 of about 839,047 (377)

An Empirical Polarizable Force Field Based on the Classical Drude Oscillator Model: Development History and Recent Applications

open access: yesChemical Reviews, 2016
Molecular mechanics force fields that explicitly account for induced polarization represent the next generation of physical models for molecular dynamics simulations.
Justin A Lemkul   +2 more
exaly   +2 more sources

Quantum Damped Harmonic Oscillator [PDF]

open access: yes, 2012
In this chapter we treat the quantum damped harmonic oscillator, and study mathematical structure of the model, and construct general solution with any initial condition, and give a quantum counterpart in the case of taking coherent state as an initial ...
K. Fujii
semanticscholar   +6 more sources

Exponential growth of out-of-time-order correlator without chaos: inverted harmonic oscillator [PDF]

open access: yesJournal of High Energy Physics, 2020
We provide a detailed examination of a thermal out-of-time-order correlator (OTOC) growing exponentially in time in systems without chaos. The system is a one-dimensional quantum mechanics with a potential whose part is an inverted harmonic oscillator ...
K. Hashimoto   +3 more
semanticscholar   +1 more source

Super algebra and Harmonic Oscillator in Anti de Sitter space [PDF]

open access: yesIranian Journal of Astronomy and Astrophysics, 2019
The harmonic oscillator in anti de Sitter space(AdS) is discussed. We consider the harmonic oscillator potential and then time independent Schrodinger equation in AdS space.
Omid Jalili, Shahin Toni
doaj   +1 more source

Algebraic solution for the classical harmonic oscillator

open access: yesRevista Brasileira de Ensino de Física, 2023
The harmonic oscillator is one of the most studied systems in Physics with a myriad of applications. One of the first problems solved in a Quantum Mechanics course is calculating the energy spectrum of the simple harmonic oscillator with analytic and ...
Murilo B. Alves
doaj   +1 more source

Spin Heat Engine Coupled to a Harmonic-Oscillator Flywheel. [PDF]

open access: yesPhysical Review Letters, 2018
We realize a heat engine using a single-electron spin as a working medium. The spin pertains to the valence electron of a trapped ^{40}Ca^{+} ion, and heat reservoirs are emulated by controlling the spin polarization via optical pumping.
D. Lindenfels   +6 more
semanticscholar   +1 more source

Multiple Nonlinear Harmonic Oscillator-Based Frequency Estimation for Distorted Grid Voltage

open access: yesIEEE Transactions on Instrumentation and Measurement, 2020
In the presence of nonlinear loads and various disturbances, harmonics and dc bias may corrupt the grid voltage signal leading to distorted grid. Frequency estimation of distorted grid signal is a challenging issue. In this paper, multiresonant nonlinear
H. Ahmed, M. Bierhoff, M. Benbouzid
semanticscholar   +1 more source

Topological Effects of a Spiral Dislocation on Quantum Revivals

open access: yesUniverse, 2022
We analyse the influence of spiral dislocation topology on the revival time for the harmonic oscillator, for a particle confined to one-dimensional quantum ring, and a two-dimensional quantum ring. We first investigate the effects of a cut-off point that
Anderson V. D. M. Maia, Knut Bakke
doaj   +1 more source

On the Inverse to the Harmonic Oscillator [PDF]

open access: yesCommunications in Partial Differential Equations, 2015
Let $b_d$ be the Weyl symbol of the inverse to the harmonic oscillator on $\R^d$. We prove that $b_d$ and its derivatives satisfy convenient bounds of Gevrey and Gelfand-Shilov type, and obtain explicit expressions for $b_d$. In the even-dimensional case we characterize $b_d$ in terms of elementary functions. In the analysis we use properties of radial
CAPPIELLO, Marco   +2 more
openaire   +3 more sources

Creating electronic oscillator-based Ising machines without external injection locking

open access: yesScientific Reports, 2022
Coupled electronic oscillators have recently been explored as a compact, integrated circuit- and room temperature operation-compatible hardware platform to design Ising machines.
Jaykumar Vaidya   +2 more
doaj   +1 more source

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