Results 161 to 170 of about 3,896 (261)

Wavelength–angle characterization of high‐energy X‐ray beams from lapped Si(111) double‐crystal monochromators using rocking‐curve tomography

Journal of Synchrotron Radiation, EarlyView.
A computed‐tomography method using full‐rotation rocking curves is developed to characterize 100 keV X‐ray beams from lapped Si(111) crystals, revealing systematic wavelength broadening while maintaining constant angular divergence in DuMond space.Lapping the surfaces of Si(111) crystals in a double‐crystal monochromator (DCM) has recently been shown ...
Hiroshi Yamazaki, Kazuhiko Tahara, Yasuhiro Shimizu, Haruhiko Ohashi   +3 more
wiley   +1 more source

A case for resonant X-ray Bragg diffraction by a collinear antiferromagnet Li₂Ni₃P₄O₁₄. [PDF]

Acta Crystallogr B Struct Sci Cryst Eng Mater
Lovesey SW.
europepmc   +1 more source

Wave Tracing: Generalizing The Path Integral To Wave Optics

Computer Graphics Forum, EarlyView.
Abstract Modeling the wave nature of light and the propagation and diffraction of electromagnetic fields is crucial for the accurate simulation of many phenomena, yet wave simulations are significantly more computationally complex than classical ray‐based models.
Shlomi Steinberg, Matt Pharr
wiley   +1 more source

Dirac-equation signal processing: Physics boosts topological machine learning. [PDF]

PNAS Nexus
Wang R, Tian Y, Liò P, Bianconi G.
europepmc   +1 more source

Testing Distributional Granger Causality With Entropic Optimal Transport

Journal of Time Series Analysis, EarlyView.
ABSTRACT We develop a novel nonparametric test for Granger causality in distribution based on entropic optimal transport. Unlike classical mean‐based approaches, the proposed method directly compares the full conditional distributions of a response variable with and without the history of a candidate predictor.
Tao Wang
wiley   +1 more source

Two-Level Theory of Second-Order Nonlinear X-ray Response beyond the Electric-Dipole Approximation. [PDF]

J Phys Chem A
Mohan AV, Serrat C.
europepmc   +1 more source

Measure‐valued processes for energy markets

Mathematical Finance, Volume 35, Issue 2, Page 520-566, April 2025.
Abstract We introduce a framework that allows to employ (non‐negative) measure‐valued processes for energy market modeling, in particular for electricity and gas futures. Interpreting the process' spatial structure as time to maturity, we show how the Heath–Jarrow–Morton approach can be translated to this framework, thus guaranteeing arbitrage free ...
Christa Cuchiero, Luca Di Persio, Francesco Guida, Sara Svaluto‐Ferro   +3 more
wiley   +1 more source

Khovanov Laplacian and Khovanov Dirac for knots and links. [PDF]

J Phys Complex
Jones B, Wei GW.
europepmc   +1 more source

The fundamental theorem of asset pricing with and without transaction costs

Mathematical Finance, Volume 35, Issue 2, Page 567-609, April 2025.
Abstract We prove a version of the fundamental theorem of asset pricing (FTAP) in continuous time that is based on the strict no‐arbitrage condition and that is applicable to both frictionless markets and markets with proportional transaction costs. We consider a market with a single risky asset whose ask price process is higher than or equal to its ...
Christoph Kühn
wiley   +1 more source

Convergence of the Immersed Interface Method in Linear Elasticity. [PDF]

Mathematica (N Y)
Asghar S, Peng Q, Javierre E, Vermolen F.   +3 more
europepmc   +1 more source