Results 71 to 80 of about 13,985 (193)
Axion‐Like Interactions and CFT in Topological Matter, Anomaly Sum Rules and the Faraday Effect
Advanced Physics Research, Volume 4, Issue 7, July 2025.This review investigates the connection between chiral anomalies and their manifestation in topological materials, using both perturbative methods based on ordinary quantum field theory and conformal field theory (CFT). It emphasizes the role of CFT in momentum space for parity‐odd correlation functions, and their reconstruction by the inclusion of a ...
Claudio Corianò +4 more
wiley +1 more source
Closed Timelike Curves Re-Examined
, 2004 17 pages, 6 postscript ...
Cooperstock, F. I., Tieu, S.
openaire +2 more sources
Cumhuriyet Science Journal, 2018 The aim of presentpaper is to introduce and investigate the spacelike Bezier curve with atimelike principal normal in Minkowski 3-space. The Serret-Frenet frame,curvatures and the derivation formulas of the curve at the starting and endingpoints are ...
Hatice Kuşak Samancı
doaj +1 more source
On the Space-Time Geometry of Quantum Systems [PDF]
, 1994 We describe the time evolution of quantum systems in a classical background space-time by means of a covariant derivative in an infinite dimensional vector bundle.
Graudenz, Dirk
core +1 more source
On totally umbilical and minimal surfaces of the Lorentzian Heisenberg groups
Mathematische Nachrichten, Volume 298, Issue 6, Page 1922-1942, June 2025.Abstract This paper has manifold purposes. We first introduce a description of the Gauss map for submanifolds (both spacelike and timelike) of a Lorentzian ambient space and relate the conformality of the Gauss map of a surface to total umbilicity and minimality.
Giovanni Calvaruso +2 more
wiley +1 more source
Fortschritte der Physik, Volume 73, Issue 4, April 2025.Abstract The Kerr metric is a vacuum solution of the Einstein equations outside of a rotating black hole (BH), but what interior matter is actually rotating and sourcing the Kerr geometry? Here, a rotating exotic matter is described, which can source the Kerr geometry for the entire acceptable range of its spin parameter and be shown to saturate the ...
Ram Brustein, A.J.M. Medved
wiley +1 more source
Blaschke frames and the motion of timelike ruled surfaces in Minkowski 3-space
AIP AdvancesThis study explores the geometry of timelike ruled surfaces and their associated Blaschke frames in Minkowski 3-space. It establishes a mapping from spacelike differentiable curves to timelike ruled surfaces and derives the corresponding differential ...
Awatif Al-Jedani, Rashad A. Abdel-Baky
doaj +1 more source
Isophote curves on timelike surfaces in Minkowski 3-space
, 2012 Isophote comprises a locus of the surface points whose normal vectors make a constant angle with a fixed vector. In this paper, isophote curves are studied on timelike surfaces in Minkowski 3-space E31.
Ali +25 more
core +1 more source
Stationary‐Angle Conditions and Bertrand Offsets in Timelike‐Ruled Surfaces
Advances in Mathematical Physics, Volume 2025, Issue 1, 2025.In this study, we introduce the concept of stationary‐angle timelike‐ruled surfaces and examine their geometric properties, particularly in relation to their Bertrand offsets. A timelike‐ruled surface is generated by the motion of a straight ruling along a striction curve, and its structure is analyzed using the Blaschke and Darboux frames.
Areej A. Almoneef +2 more
wiley +1 more source
Nonlinearity in quantum theory and closed timelike curves [PDF]
Physical Review D, 1995 17 pages plain TeX, DAMTP R/94 ...
openaire +3 more sources