Results 111 to 120 of about 25,203 (212)
Ring Current Ion Scattering by Electromagnetic Ion Cyclotron Waves: Nonlinear Resonance Effects
Journal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.Abstract Electromagnetic ion cyclotron (EMIC) waves can interact with ring current ions and scatter them into the atmosphere. The classical framework for studying EMIC wave–ion interaction is the quasi‐linear theory, which relies on the approximation of weak perturbations of particle trajectories for a single resonant interaction. However, intense EMIC
Xiaofei Shi +2 more
wiley +1 more source
Astroparticle Physics Tests of Lorentz Invariance Violation
, 2017 Testing Lorentz invariance is essential as it is one of the pillars of modern physics. Moreover, its violation is foreseen in several popular Quantum Gravity models.
de Souza, Vitor, Lang, Rodrigo Guedes
core +1 more source
Advances in Topological Thermoelectrics: Harnessing Quantum Materials for Energy Applications
Advanced Materials, Volume 37, Issue 39, October 2, 2025.Topological materials offer a novel platform for thermoelectric energy conversion through unique band features, including band inversion, linear Dirac bands, surface states, and Berry curvature. These quantum characteristics enable enhanced longitudinal and transverse thermoelectric effects, establishing topological thermoelectrics as a promising ...
Guangsai Yang +8 more
wiley +1 more source
An application of Lorentz-invariance violation in black hole thermodynamics
European Physical Journal C: Particles and Fields, 2017 In this paper, we have applied the Lorentz-invariance violation (LIV) class of dispersion relations (DRs) with the dimensionless parameter $$\textit{n}=2$$ n=2 and the “sign of LIV” $$\eta _+ = 1$$ η+=1 , to a phenomenological study of the effect of ...
Guo-Ping Li +3 more
doaj +1 more source
Bounds on Lorentz and CPT Violation from the Earth-Ionosphere Cavity
, 2008 Electromagnetic resonant cavities form the basis of many tests of Lorentz invariance involving photons. The effects of some forms of Lorentz violation scale with cavity size.
A. A. Michelson +15 more
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Fortschritte der Physik, Volume 73, Issue 9-10, October 2025.Abstract The unification of conformal and fuzzy gravities with internal interactions is based on the facts that i) the tangent group of a curved manifold and the manifold itself do not necessarily have the same dimensions and ii) both gravitational theories considered here have been formulated in a gauge theoretic way.
Gregory Patellis +3 more
wiley +1 more source
Status and prospects for CPT and Lorentz invariance violation searches in neutral meson mixing
Physics Letters B, 2015 An overview of current experimental bounds on CPT violation in neutral meson mixing is given. New values for the CPT asymmetry in the B0 and Bs0 systems are deduced from published BaBar, Belle and LHCb results.
Jeroen van Tilburg, Maarten van Veghel
doaj +1 more source
Nonlinear QED and Physical Lorentz Invariance
, 2006 The spontaneous breakdown of 4-dimensional Lorentz invariance in the framework of QED with the nonlinear vector potential constraint A_{\mu}^{2}=M^{2}(where M is a proposed scale of the Lorentz violation) is shown to manifest itself only as some ...
A. T. Azatov +8 more
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Higher-order Lorentz-invariance violation, quantum gravity and fine-tuning
Physics Letters B, 2015 The issue of Lorentz fine-tuning in effective theories containing higher-order operators is studied. To this end, we focus on the Myers–Pospelov extension of QED with dimension-five operators in the photon sector and standard fermions.
Carlos M. Reyes +2 more
doaj +1 more source
Effect of bulk Lorentz violation on anisotropic brane cosmologies
, 2012 The effect of Lorentz invariance violation in cosmology has attracted a considerable amount of attention. By using a dynamical vector field assumed to point in the bulk direction, with Lorentz invariance holding on the brane, we extend the notation of ...
Heydari-Fard, Malihe
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