Results 21 to 30 of about 11,364,385 (285)
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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Probing the Weizsäcker-Williams gluon Wigner distribution in pp collisions [PDF]
Physical Review D, 2018 Author(s): Boussarie, R; Hatta, Y; Xiao, BW; Yuan, F | Abstract: © 2018 authors. Published by the American Physical Society. We show that the diffractive forward production of two quarkonia, especially the χcJ and ηc states, in proton-proton or proton ...
R. Boussarie, Y. Hatta, B. Xiao, F. Yuan
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Accessing the gluon Wigner distribution in ultraperipheral pA collisions [PDF]
, 2017 We propose to constrain the gluon Wigner distribution in the nucleon by studying the exclusive diffractive dijet production process in ultraperipheral proton-nucleus collisions (UPCs) at the RHIC and the LHC. Compared to the previous proposal in Ref. [Y.
Y. Hagiwara +4 more
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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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The Affine Wigner Distribution [PDF]
, 2019 We examine the affine Wigner distribution from a quantization perspective with an emphasis on the underlying group structure. One of our main results expresses the scalogram as (affine) convolution of affine Wigner distributions.
Eirik Berge, S. M. Berge, Franz Luef
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Quark Wigner distribution of the pion meson in light-cone quark model [PDF]
Physical Review D, 2018 We study the quark Wigner distributions of the pion meson which are the phase-space distributions containing the most general one-parton information.Using the pion wavefunctions deduced from a light-cone quark model, we calculate the Wigner distributions
Zhi-Lei Ma, Zhun Lu
semanticscholar +1 more source
IEEE Transactions on Signal Processing, 2021 This paper proposes a new performance evaluation process for time-frequency distributions (TFD) by designing a reference optimal TFD and novel accuracy and resolution measures.
Mohammad Al-Sa'd +2 more
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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 $ν_{ij}$ whose first two moments coincide with those of the corresponding Gaussian ensemble.
Knowles, Antti, Yin, Jun
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Covariant chiral kinetic equation in non-Abelian gauge field from “covariant gradient expansion”
Journal of High Energy Physics, 2021 We derive the chiral kinetic equation in 8 dimensional phase space in non- Abelian SU(N) gauge field within the Wigner function formalism. By using the “covariant gradient expansion”, we disentangle the Wigner equations in four-vector space up to the ...
Xiao-Li Luo, Jian-Hua Gao
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Analyse des signaux multicomposante à modulation de fréquence linéaire par la transformation de Teager-Huang-Hough [PDF]
, 2014 A novel detection approach of linear FM (LFM) signals, with single or multiple components, in the time-frequency plane of Teager-Huang (TH) transform is presented.
BOUDRAA, Abdelouahab +4 more
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