Results 11 to 20 of about 1,145,296 (299)

Spectral density on the lattice [PDF]

open access: yesNuclear Physics B, 1996
38 pages, uuencoded tar-compressed ps ...
Makovoz, D., Miller, G. A.
openaire   +4 more sources

GROUND BASED SUPPORT OF THE SPACE MISSION PARKER PERFORMED WITH UKRAINIAN LOW FREQUENCY RADIO TELESCOPES [PDF]

open access: yesRadio Physics and Radio Astronomy, 2023
Subject and Purpose. The sporadic radio emissions coming from the Sun in a broad frequency range contain a lot of important information concerning the solar corona, parameters of the radio frequency sources therein, and the parameter variations resulting
V. V. Dorovsky   +2 more
doaj   +1 more source

Rolling stock vibrodynamic impact model on railway pipelines [PDF]

open access: yesE3S Web of Conferences, 2023
The present paper presents the rolling stock vibrodynamic impact model on railway pipelines, obtained on the basis of experimental studies conducted under field conditions at a railway station.
Postnova E.V., Runev E.V.
doaj   +1 more source

On one condition of absolutely continuous spectrum for self-adjoint operators and its applications [PDF]

open access: yesOpuscula Mathematica, 2018
In this work the method of analyzing of the absolutely continuous spectrum for self-adjoint operators is considered. For the analysis it is used an approximation of a self-adjoint operator \(A\) by a sequence of operators \(A_n\) with absolutely ...
Eduard Ianovich
doaj   +1 more source

Densities, spectral densities and modality [PDF]

open access: yesThe Annals of Statistics, 2004
Published by the Institute of Mathematical Statistics (http://www.imstat.org) in the Annals of Statistics (http://www.imstat.org/aos/) at http://dx.doi.org/10.1214 ...
Davies, PL, Kovac, A
openaire   +7 more sources

Semi-empirical Haken–Strobl model for molecular spin qubits

open access: yesNew Journal of Physics, 2023
Understanding the physical processes that determine the relaxation T _1 and dephasing T _2 times of molecular spin qubits is critical for envisioned applications in quantum metrology and information processing.
Katy Aruachan   +3 more
doaj   +1 more source

New Insights into the Lamb Shift: The Spectral Density of the Shift

open access: yesPhysics, 2022
In an atom, the interaction of a bound electron with the vacuum fluctuations of the electromagnetic field leads to complex shifts in the energy levels of the electron, with the real part of the shift corresponding to a shift in the energy level and the ...
G. Jordan Maclay
doaj   +1 more source

Difference of cross-spectral densities [PDF]

open access: yesOptics Letters, 2014
Generally speaking, the difference between two cross-spectral densities (CSDs) does not represent a correlation function. We will furnish a sufficient condition so that such difference be a valid CSD. Using such a condition, we will show through some examples how new classes of CSDs can be generated.
González de Sande, Juan Carlos   +3 more
openaire   +4 more sources

Accurate Truncations of Chain Mapping Models for Open Quantum Systems

open access: yesNanomaterials, 2021
The dynamics of open quantum systems are of great interest in many research fields, such as for the interaction of a quantum emitter with the electromagnetic modes of a nanophotonic structure.
Mónica Sánchez-Barquilla   +1 more
doaj   +1 more source

Spectral densities from dynamic density-matrix renormalization [PDF]

open access: yesThe European Physical Journal B, 2005
Dynamic density-matrix renormalization provides valuable numerical information on dynamic correlations by computing convolutions of the corresponding spectral densities. Here we discuss and illustrate how and to which extent such data can be deconvolved to retrieve the wanted spectral densities.
Raas, Carsten, Uhrig, Götz S.
openaire   +2 more sources

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