Results 11 to 20 of about 9,826 (198)
Physical Review Research, 2023 Raman spectra from molecular systems are typically regarded as comprising a set of sharp peaks. These arise from both single-molecule modes and extended Γ point phonons being, in theory, harmonic oscillators.
Mungo Frost +3 more
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Results in Physics, 2021 In this manuscript, we derive integrals of motion for general anharmonic oscillators with damping and power-law forcing. The model under investigation has time-dependent coefficients, and the determination of these physical quantities is carried out ...
J.E. Macías-Díaz +2 more
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Unified Treatment of Even and Odd Anharmonic Oscillators of Arbitrary Degree [PDF]
, 2009 We present a unified treatment, including higher-order corrections, of anharmonic oscillators of arbitrary even and odd degree. Our approach is based on a dispersion relation which takes advantage of the PT-symmetry of odd potentials for imaginary ...
Andrey Surzhykov +3 more
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Parametric couplings in engineered quantum systems
SciPost Physics Lecture Notes, 2023 Parametric couplings in engineered quantum systems are a powerful tool to control, manipulate and enhance interactions in a variety of platforms. It allows us to bring systems of different energy scales into communication with each other.
Anja Metelmann
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Variational collocation for systems of coupled anharmonic oscillators [PDF]
, 2009 We have applied a collocation approach to obtain the numerical solution to the stationary Schr\"odinger equation for systems of coupled oscillators.
Amore P +20 more
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Bifurcations of Liouville tori of coupled sextic anharmonic oscillators
Journal of Low Frequency Noise, Vibration and Active Control, 2023 In the current paper, the problem of sextic anharmonic oscillators is investigated. There are three integrable cases of this problem. Emphasis is placed on two integrable cases, and a full description of each one is provided.
Fawzy M El-Sabaa +3 more
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Group theoretical analysis of a quantum-mechanical three-dimensional quartic anharmonic oscillator [PDF]
, 2015 This paper illustrates the application of group theory to a quantum-mechanical three-dimensional quartic anharmonic oscillator with $O_{h}$ symmetry.
Fernández, Francisco M.
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Local mode interpretation of the OH overtone spectrum of 1:1 phyllosilicates [PDF]
European Journal of Mineralogy, 2021 Although OH overtone bands of 1:1 phyllosilicates are commonly observed in their near-infrared (NIR) spectra, their interpretation in terms of transitions between specific vibrational states is still uncertain.
E. Balan +6 more
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Optically Driven Formation of Tailored Phonon Cavities. [PDF]
Adv Sci (Weinh)It is demonstrated that a structured optical field creates nanoscale “phonon cavities” in van der Waals materials, where atomic vibrations are confined and controlled in space and time. This approach enables programmable control of cavity geometry, symmetry, and frequency, and provides a platform for ultrafast studies of nonequilibrium interactions and
Wu J +5 more
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Condensed Matter Physics, 2018 For Sn_2P_2S_6 family of uniaxial ferroelectrics, the anharmonic quantum oscillators model, based on local three-well potential for spontaneous polarization fluctuations, has been used for a description of anharmonic properties, namely thermal expansion.
R. Yevych, Yu. Vysochanskii
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