Results 21 to 30 of about 4,238 (224)

Statistical Study of the Entanglement for Qubit Interacting with an Electromagnetic Field

open access: yesAdvances in Mathematical Physics, 2021
A statistical method is applied to predict the behaviour of a quantum model consisting of a qubit interacting with a single-mode cavity field. The qubit is prepared in excited state while the field starts from the binomial distribution state.
Neveen Sayed-Ahmed   +6 more
doaj   +1 more source

Investigating Quantum Coherence by Negative Excursions of the Wigner Quasi-Distribution

open access: yesApplied Sciences, 2019
Quantum information and quantum communication are both strongly based on concepts of quantum superposition and entanglement. Entanglement allows distinct bodies, that share a common origin or that have interacted in the past, to continue to be described ...
Mauro Ballicchia   +3 more
doaj   +1 more source

A microscopic ancient river channel identification method based on maximum entropy principle and Wigner-Ville Distribution and its application

open access: yesPetroleum Exploration and Development, 2021
In view of the problem of fine characterization of narrow and thin channels, the maximum entropy criterion is used to enhance the focusing characteristics of Wigner-Ville Distribution.
Tianji XU   +4 more
doaj   +1 more source

Quantifying Information via Shannon Entropy in Spatially Structured Optical Beams

open access: yesResearch, 2021
While information is ubiquitously generated, shared, and analyzed in a modern-day life, there is still some controversy around the ways to assess the amount and quality of information inside a noisy optical channel.
Maria Solyanik-Gorgone   +5 more
doaj   +1 more source

Classical distribution functions derived from Wigner distribution functions [PDF]

open access: yesJournal of Physics A: Mathematical and General, 1995
Summary: A mapping which relates the Wigner phase-space distribution function associated with a given stationary quantum-mechanical wavefunction to a specific solution of the time-independent Liouville transport equation is obtained. Two examples are studied.
openaire   +2 more sources

Wigner function and the probability representation of quantum states

open access: yesEPJ Web of Conferences, 2014
The relation of theWigner function with the fair probability distribution called tomographic distribution or quantum tomogram associated with the quantum state is reviewed.
Man’ko Margarita A.   +1 more
doaj   +1 more source

Comment on ‘Wigner function for a particle in an infinite lattice’

open access: yesNew Journal of Physics, 2013
It is pointed out that in a recent paper (2012 New J. Phys. 14 103009) in which a Wigner function for a particle in an infinite lattice (a system described by an unbounded discrete coordinate and its conjugate angle-like momentum) has been introduced, no
João P S Bizarro
doaj   +1 more source

Angular dependence of the Wigner time delay upon strong-field ionization from an aligned p orbital

open access: yesPhysical Review Research, 2023
We present experimental data on the strong-field ionization of the argon dimer in a co-rotating two-color laser field. We observe a subcycle interference pattern in the photoelectron momentum distribution and infer the Wigner time delay using holographic
D. Trabert   +9 more
doaj   +1 more source

On the Octonion Cross Wigner Distribution of 3-D Signals

open access: yesApplied Sciences, 2022
This paper introduces definitions of the octonion cross Wigner distribution (OWD) and the octonion ambiguity function, forming a pair of octonion Fourier transforms. The main part is devoted to the study of the basic properties of the OWD. Among them are
Łukasz Błaszczyk, Kajetana Snopek
doaj   +1 more source

Wigner-Ville distribution and ambiguity function associated with the quaternion offset linear canonical transform

open access: yesDemonstratio Mathematica, 2022
Wigner-Ville transform or Wigner-Ville distribution (WVD) associated with quaternion offset linear canonical transform (QOLCT) was proposed by Bhat and Dar. This work is devoted to the development of the theory proposed by them, which is an emerging tool
Bhat Mohammad Younus   +3 more
doaj   +1 more source

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