Results 31 to 40 of about 858,600 (285)

Quantum nature of Wigner function for inflationary tensor perturbations

open access: yesJournal of High Energy Physics, 2020
We study the Wigner function for the inflationary tensor perturbation defined in the real phase space. We compute explicitly the Wigner function including the contributions from the cubic self-interaction Hamiltonian of tensor perturbations.
Jinn-Ouk Gong, Min-Seok Seo
doaj   +1 more source

A Hybrid Fault Recognition Algorithm Using Stockwell Transform and Wigner Distribution Function for Power System Network with Solar Energy Penetration

open access: yes, 2020
Penetration level of solar photovoltaic (PV) energy in the utility network is steadily increasing. This changes the fault level and causes protection problems.
Atul Kulshrestha   +7 more
semanticscholar   +1 more source

Dynamical entropic measure of nonclassicality of phase-dependent family of Schrödinger cat states

open access: yesScientific Reports, 2023
The phase-space approach based on the Wigner distribution function is used to study the quantum dynamics of the three families of the Schrödinger cat states identified as the even, odd, and Yurke–Stoler states.
M. Kalka   +4 more
doaj   +1 more source

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

Non-hogel-based computer generated hologram from light field using complex field recovery technique from Wigner distribution function.

open access: yesOptics Express, 2019
We propose a novel method that synthesizes computer-generated holograms from light field data. Light field, or ray space, is the spatio-angular distribution of light rays coming from three-dimensional scene, and it can also be represented using a large ...
Jae-Hyeung Park, M. Askari
semanticscholar   +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

X‐ray magnetic circular dichroism

open access: yesMajor 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

Wigner distribution of Sine-Gordon and Kink solitons [PDF]

open access: yesModern Physics Letters A, 2022
Wigner distributions play a significant role in formulating the phase–space analog of quantum mechanics. The Schrödinger wave functional for solitons is needed to derive it for solitons. The Wigner distribution derived can further be used for calculating
Ramkumar Radhakrishnan, V. K. Ojha
semanticscholar   +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

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