Results 11 to 20 of about 91,861 (215)
An Interplay of Wigner–Ville Distribution and 2D Hyper-Complex Quadratic-Phase Fourier Transform
Fractal and Fractional, 2023 Two-dimensional hyper-complex (Quaternion) quadratic-phase Fourier transforms (Q-QPFT) have gained much popularity in recent years because of their applications in many areas, including color image and signal processing.
Mohammad Younus Bhat +3 more
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Entropy, 2020 The quantum effect on the Wigner time-delay and distribution for the polarization scattering in a semiclassical dense plasma is explored. The partial wave analysis is applied for a partially ionized dense plasma to derive the phase shift for the ...
Myoung-Jae Lee, Young-Dae Jung
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Semiclassical formulae for Wigner distributions
Journal of Physics A: Mathematical and Theoretical, 2022 Abstract In this paper we give an overview over some aspects of the modern mathematical theory of Ruelle resonances for chaotic, i.e. uniformly hyperbolic, dynamical systems and their implications in physics. First we recall recent developments in the mathematical theory of resonances, in particular how invariant Ruelle distributions ...
Sonja Barkhofen +2 more
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Symplectic Radon Transform and the Metaplectic Representation
Entropy, 2022 We study the symplectic Radon transform from the point of view of the metaplectic representation of the symplectic group and its action on the Lagrangian Grassmannian.
Maurice A. de Gosson
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Eigenvector distribution of Wigner matrices [PDF]
Probability Theory and Related Fields, 2011 We consider $N\times N$ Hermitian or symmetric random matrices with independent entries. The distribution of the $(i,j)$-th matrix element is given by a probability measure $ _{ij}$ whose first two moments coincide with those of the corresponding Gaussian ensemble.
Knowles, Antti, Yin, Jun
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Distribution and quantification of remotely generated Wigner negativity
npj Quantum Information, 2022 Wigner negativity, as a well-known indicator of nonclassicality, plays an essential role in quantum computing and simulation using continuous-variable systems.
Yu Xiang +6 more
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A Wigner distribution function for finite oscillator systems [PDF]
, 2013 We define a Wigner distribution function for a one-dimensional finite quantum system, in which the position and momentum operators have a finite (multiplicity-free) spectrum. The distribution function is thus defined on discrete phase-space, i.e.
Van der Jeugt, Joris
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X‐ray magnetic circular dichroism
Major Reference Works, Page 508-515., 2022 International Tables for Crystallography is the definitive resource and reference work for crystallography and structural science.
Each of the eight volumes in the series contains articles and tables of data relevant to crystallographic research and to applications of crystallographic methods in all sciences concerned with the ...
Gerrit van der Laan C. Chantler +2 more
wiley +1 more source
EURASIP Journal on Advances in Signal Processing, 2021 Linear canonical transform (LCT) is a powerful tool for improving the detection accuracy of the conventional Wigner distribution (WD). However, the LCT free parameters embedded increase computational complexity.
Sheng-Zhou Qiang +7 more
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Wigner distributions and quantum mechanics on Lie groups: the case of the regular representation [PDF]
, 2003 We consider the problem of setting up the Wigner distribution for states of a quantum system whose configuration space is a Lie group. The basic properties of Wigner distributions in the familiar Cartesian case are systematically generalised to ...
Agarwal +35 more
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