Results 1 to 10 of about 3,724,631 (298)

Normal ordering normal modes [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
In a soliton sector of a quantum field theory, it is often convenient to expand the quantum fields in terms of normal modes. Normal mode creation and annihilation operators can be normal ordered, and their normal ordered products have vanishing ...
Jarah Evslin
doaj   +4 more sources

Two Chebyshev Spectral Methods for Solving Normal Modes in Atmospheric Acoustics [PDF]

open access: yesEntropy, 2021
The normal mode model is important in computational atmospheric acoustics. It is often used to compute the atmospheric acoustic field under a time-independent single-frequency sound source.
Yongxian Wang   +4 more
doaj   +2 more sources

Boson star normal modes

open access: yesJournal of High Energy Physics, 2023
Boson stars are gravitationally bound objects that arise in ultralight dark matter models and form in the centers of galactic halos or axion miniclusters.
James Hung-Hsu Chan   +2 more
doaj   +3 more sources

Detection of Mars Normal Modes From S1222a Event and Seismic Hum

open access: yesGeophysical Research Letters, 2023
We present the first detection of normal modes on Mars using the vertical records from InSight's broad‐band seismometer following the marsquake that occurred on sol 1222. The proposed catalog lists 60 potential eigenfrequencies between 3 and 12 mHz.
P. Lognonné   +8 more
doaj   +2 more sources

Universal spectrum of normal modes in low-temperature glasses. [PDF]

open access: yesProc Natl Acad Sci U S A, 2015
Franz S, Parisi G, Urbani P, Zamponi F.
europepmc   +2 more sources

Identifying the significance of nonlinear normal modes. [PDF]

open access: yesProc Math Phys Eng Sci, 2017
Hill TL   +3 more
europepmc   +2 more sources

Normal modes of a waveguide as eigenvectors of a self-adjoint operator pencil

open access: yesDiscrete and Continuous Models and Applied Computational Science, 2021
A waveguide with a constant, simply connected section S is considered under the condition that the substance filling the waveguide is characterized by permittivity and permeability that vary smoothly over the section S, but are constant along the ...
Mikhail D. Malykh
doaj   +1 more source

Perfect Invisibility Modes in Dielectric Nanofibers

open access: yesPhotonics, 2023
With the help of the original mathematical method for solving Maxwell’s equations, it is shown that in dielectric waveguides along with usual waveguides and quasi-normal modes, there are perfect invisibility modes or perfect non-scattering modes.
Vasily V. Klimov, Dmitry V. Guzatov
doaj   +1 more source

Building Biological Relevance Into Integrative Modelling of Macromolecular Assemblies

open access: yesFrontiers in Molecular Biosciences, 2022
Recent advances in structural biophysics and integrative modelling methods now allow us to decipher the structures of large macromolecular assemblies.
Anne-Elisabeth Molza   +13 more
doaj   +1 more source

Influence of the magnetic field and the mean flow configuration on spatial structure and growth rate of normal modes

open access: yesSolar-Terrestrial Physics, 2023
The first part of the work presents the results of numerical experiments with the magnetohydrodynamic model of “shallow water” to assess the degree of influence of the magnetic field on the development of instabilities conditioned by a combination of ...
Mordvinov V. I.   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy