Results 101 to 110 of about 37,959 (230)

Advances in Topological Thermoelectrics: Harnessing Quantum Materials for Energy Applications

open access: yesAdvanced 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

Tests of Lorentz Symmetry in Single Beta Decay

open access: yesAdvances in High Energy Physics, 2014
Low-energy experiments studying single beta decay can serve as sensitive probes of Lorentz invariance that can complement interferometric searches for deviations from this spacetime symmetry.
Jorge S. Díaz
doaj   +1 more source

Testing Lorentz invariance with neutrino bursts from supernova neutronization

open access: yes, 2013
Quantum-gravity (QG) effects might generate Lorentz invariance violation by the interaction of energetic particles with the foamy structure of the space-time. As a consequence, particles may not travel at the universal speed of light.
Chakraborty, Sovan   +2 more
core   +1 more source

Momentum-resolved probing of Lorentz-violating dispersion relations via Unruh-DeWitt detector

open access: yesPhysics Letters B
Inspired by quantum gravity frameworks predicting Planck-scale deviations from Lorentz invariance, we probe Lorentz symmetry violation via modified dispersion relations ω|k|.
Hao Xu
doaj   +1 more source

Testing Lorentz invariance in β decay

open access: yesEPJ Web of Conferences, 2014
In theories aiming to unify the Standard Model with gravity, Lorentz invariance may be broken. Although Lorentz symmetry appears to hold well, few experiments have been performed that consider its violation in the weak interaction.
Sytema A.
doaj   +1 more source

Constraints on Lorentz Invariance Violation using INTEGRAL/IBIS observations of GRB041219A [PDF]

open access: yes, 2011
One of the experimental tests of Lorentz invariance violation is to measure the helicity dependence of the propagation velocity of photons originating in distant cosmological obejcts.
A. Fernandez-Soto   +7 more
core   +4 more sources

Unification of Conformal and Fuzzy Gravities With Internal Interactions Resulting in SO(10) and a Possible Probe Through Stochastic Gravitational Wave Background

open access: yesFortschritte 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

Spin‐Polarized Antiferromagnets for Spintronics

open access: yesAdvanced Materials, Volume 37, Issue 36, September 11, 2025.
This review highlights recent advances in anomalous and spin transport phenomena in spin‐polarized antiferromagnets. Key effects—including the anomalous Hall, Nernst, and magneto‐optical effects—are discussed across various antiferromagnetic platforms.
Zhenzhou Guo   +5 more
wiley   +1 more source

No CPT Violation from Tilted Brane in Neutral Meson--Antimeson Systems [PDF]

open access: yes, 2000
Tilted brane in theories with large compact extra dimensions leads to spontaneous symmetry breaking of the Lorentz and rotational invariance in four dimensions, as shown by Dvali and Shifman.
B. Schwingenheuer   +13 more
core   +2 more sources

Considering Late-Time Acceleration in Some Cosmological Models

open access: yesAdvances in High Energy Physics, 2013
We study two cosmological models: a nonminimally coupled scalar field on brane world model and a minimally coupled scalar field on Lorentz invariance violation model. We compare some cosmological results in these scenarios.
S. Davood Sadatian
doaj   +1 more source

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