Results 101 to 110 of about 858,600 (285)

Theoretical framework for soft X‐ray Fourier transform spectroscopy using the Wigner function

open access: yesJournal of Synchrotron Radiation, EarlyView.
A theoretical framework for the propagation of partially coherent Gaussian radiation in a modified Mach–Zehnder interferometer designed for Fourier transform spectroscopy applications is presented.This work presents a theoretical framework for the propagation of partially coherent Gaussian radiation in a modified Mach–Zehnder interferometer designed ...
Chuzida Chen   +6 more
wiley   +1 more source

Properties and applications of the Kirkwood–Dirac distribution

open access: yesNew Journal of Physics
There are several mathematical formulations of quantum mechanics. The Schrödinger picture expresses quantum states in terms of wavefunctions over, e.g. position or momentum.
David R M Arvidsson-Shukur   +8 more
doaj   +1 more source

Modelling the time‐resolved modulations of cardiac activity in rats: A study on pharmacological autonomic stimulation

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Time‐resolved estimation of cardiac rhythmicity parameters. A pipeline is shown for the estimation of the fluctuating cardiac parameters, based on the Poincaré plot. The Poincaré plot illustrates the successive changes in interbeat intervals (IBI).
Diego Candia‐Rivera   +3 more
wiley   +1 more source

Dynamically generated quadrature and photon-number variances for Gaussian states

open access: yes, 2017
We calculate exactly the quantum mechanical, temporal Wigner quasiprobability density for a single-mode, degenerate parametric amplifier for a system in the Gaussian state, viz., a displaced-squeezed thermal state.
Alexanian, Moorad
core   +1 more source

What If Each Voxel Were Measured With a Different Diffusion Protocol?

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 4, Page 2277-2290, April 2026.
ABSTRACT Purpose Expansion of diffusion MRI (dMRI) both into the realm of strong gradients and into accessible imaging with portable low‐field devices brings about the challenge of gradient nonlinearities. Spatial variations of the diffusion gradients make diffusion weightings and directions non‐uniform across the field of view, and deform perfect ...
Santiago Coelho   +7 more
wiley   +1 more source

Haptic Experiences Shift Students' Representational Gestures and Knowledge Resources

open access: yesJournal of Research in Science Teaching, Volume 63, Issue 2, Page 138-160, February 2026.
ABSTRACT The present investigation adopts an embodied cognition perspective to characterize students' learning interactions between gesture and haptic experience. Haptic technologies have emerged as a promising approach to science learning because they can simulate physical forces that students would otherwise not experience. Student‐generated gestures
Xiaoyu Tang, Matthew Lira, Robb Lindgren
wiley   +1 more source

Improving Energy and Molecular Properties by Convergence of the One‐Particle Reduced Density Matrix in Variational Quantum Eigensolvers (VQE)

open access: yesJournal of Computational Chemistry, Volume 47, Issue 1, 05 January 2026.
Two new strategies that include the convergence of the one‐particle reduced density matrix (1‐RDM) were introduced in Variational Quantum Eigensolvers (VQE). Improved energy and, most importantly, density‐based properties (dipole moments, electron density) were obtained.
Amanda Marques de Lima   +3 more
wiley   +1 more source

Wigner Distributions Using Light-Front Wave Functions [PDF]

open access: yesProceedings of QCD Evolution 2017 — PoS(QCDEV2017), 2018
We report on some recent advances in calculating the Wigner distributions for quarks and gluons, using overlaps of light-front wave functions.
openaire   +2 more sources

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