Results 111 to 120 of about 548,689 (195)
Role of scattering and birefringence in phase retardation revealed by locus of Stokes vector on Poincaré sphere. [PDF]
J Biomed Opt, 2020 Borovkova M +3 more
europepmc +1 more source
Poincaré: intuitionism, intuition, and convention
, 2008 International audienceLa question des conventions et de l'intuition dans la philosophie des mathématiques de Poincaré.
Heinzmann, Gerhard +3 more
core +1 more source
Annalen der Physik, Volume 538, Issue 10, October 2026.Nonlocal quantum field theory predicts a finite phase‐space resolution, so even highly squeezed quantum states cannot be localized beyond a fundamental nonlocal limit, providing a potential experimental signature of nonlocality. ABSTRACT In a previous paper we derived an uncertainty relation for nonlocal fields by showing that the physical localization
E. J. Thompson
wiley +1 more source
The Poincaré conjeture : a problem solved after a century of new ideas and continued [PDF]
, 2018 The Poincaré conjecture is a topological problem established in 1904 by the French mathematician Henri Poincaré. It characterises three-dimensional spheres in a very simple way. It uses only the first invariant of algebraic topology ?
Lozano Imízcoz, María Teresa
core
Non‐Geometric T‐Duality as Higher Groupoid Bundles With Connections
Fortschritte der Physik, Volume 74, Issue 10, October 2026.This paper describes T‐duality between geometric and non‐geometric backgrounds using spans of higher groupoid bundles with adjusted connections. This framework incorporates explicit metric formulas, scalar fields, and Q$Q$‐fluxes. The resulting model reproduces key literature examples while maintaining covariance under the full T‐duality group O(n,n;Z)$
Hyungrok Kim, Christian Saemann
wiley +1 more source
Dynamics of polarization and coherence of partially polarized light sources on the Poincaré sphere
, 2021 La descripción matemática de la polarización de la luz está basada en el método de la matriz decoherencia-polarización, los parámetros de Stokes, el vector de Jones, los cuaterniones de Pellat-Finet y el métodográfico de la esfera de Poincaré ...
Salazar Ariza, Karel Vianney
core
Next‐Generation Brain Health Monitoring Enabled by Integrated Wearable AI Infrastructure
Smart Medicine, Volume 5, Issue 5, October 2026.This review presents an integrated framework for next‐generation brain‐health monitoring that connects molecular pathology to digital biomarkers via multimodal wearable sensing, signal processing, and AI‐driven analytics. It highlights advances in sensor design, data quality, edge computing, artificial intelligence, digital twins, and clinical ...
Muhammad Hasan Masrur +4 more
wiley +1 more source
Experimental mapping of vector vortex beams onto Higher order Poincaré sphere
Results in OpticsThe polarization distribution of a structured light field, such as a vector vortex beam (VVB), is defined by a uniform ellipticity and a polarization azimuth that varies across the transverse plane.
Susheel Bhardwaj, P. Senthilkumaran
doaj +1 more source
The Additive Logic of Epistemic Reasons: An Axiomatic Account
Theoria, Volume 92, Issue 5, October 2026.ABSTRACT The article argues for a system of axioms that is meant to capture the logic of normative reasons for belief. The system concerns a primitive direct‐reason relation, a defined doxastic‐reason relation, and a primitive function for the revision of rational belief by reasons.
Hannes Leitgeb
wiley +1 more source
, 2019 Unitary and non-unitary operations can be carried out by the Jones matrix. Z matrix is the 4x4 analogue of the Jones matrix. Jones matrix acts on the two component complex Jones vector, while Z matrix acts on the four component real Stokes vector ...
E. Kuntman (8217333) +5 more
core +1 more source