Results 21 to 30 of about 9,826 (198)
Generalized measure of quantum synchronization
Physical Review Research, 2020 We present a generalized information-theoretic measure of synchronization in quantum systems. This measure is applicable to dynamics of anharmonic oscillators, few-level atoms, and coupled oscillator networks.
Noufal Jaseem +5 more
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Partition functions of non-Lagrangian theories from the holomorphic anomaly
Journal of High Energy Physics, 2023 The computation of the partition function in certain quantum field theories, such as those of the Argyres-Douglas or Minahan-Nemeschansky type, is problematic due to the lack of a Lagrangian description.
Francesco Fucito +3 more
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Mean-field model of interacting quasilocalized excitations in glasses
SciPost Physics Core, 2021 Structural glasses feature quasilocalized excitations whose frequencies $\omega$ follow a universal density of states ${\cal D}(\omega)\!\sim\!\omega^4$. Yet, the underlying physics behind this universality is not yet fully understood.
Corrado Rainone, Pierfrancesco Urbani, Francesco Zamponi, Edan Lerner, and Eran Bouchbinder
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Journal of Mathematical Analysis and Applications, 1983 AbstractThe anharmonic oscillator is solved quickly, easily, and elegantly by Adomian's methods for solution of nonlinear stochastic differential equations emphasizing its applicability to nonlinear deterministic equations as well as stochastic equations.
Adomian, G., Rach, R.
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Perturbation theory by the moment method and point-group symmetry [PDF]
, 2014 We analyze earlier applications of perturbation theory by the moment method (also called inner product method) to anharmonic oscillators. For concreteness we focus on two-dimensional models with symmetry $C_{4v}$ and $C_{2v}$ and reveal the reason why ...
Fernández, Francisco M.
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On the eigenvalues of some nonhermitian oscillators [PDF]
, 2013 We consider a class of one-dimensional nonhermitian oscillators and discuss the relationship between the real eigenvalues of PT-symmetric oscillators and the resonances obtained by different authors.
Fern/'andez, Francisco M. +1 more
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Variational Principle Techniques and the Propertiesof a Cut-off and Anharmonic Wave Function
E-Journal of Chemistry, 2009 The variational principles are very useful analytical tool for the study of the ground state energy of any dynamical system. In this work, we have evaluated the method and techniques of variational principle to derive the ground state energy for the ...
A. N. Ikot +4 more
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Condensed Matter Physics, 2006 We study the regularity problems for unbounded spin systems of anharmonic oscillators, that approximate multi-dimensional Euclidean field theories. The main attention is paid to the effect of anharmonism on the C∞-regularity properties of evolutional ...
Alexander Val. Antoniouk +1 more
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Anharmonic resonances with recursive delay feedback
, 2011 We consider application of the multiple time delayed feedback for control of anharmonic (nonlinear) oscillators subject to noise. In contrast to the case of a single delay feedback, the multiple one exhibits resonances between feedback and nonlinear ...
Ahlborn +30 more
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Generalized Miller Formulae for Quantum Anharmonic Oscillators
DynamicsMiller’s rule originated as an empirical relation between the nonlinear and linear optical coefficients of materials. It is now accepted as a useful tool for guiding experiments and computational materials discovery, but its theoretical foundation had ...
Maximilian T. Meyer, Arno Schindlmayr
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