Results 151 to 160 of about 37,959 (230)

CPT/Lorentz Invariance Violation and Quantum Field Theory

, 2006
Contribution to the Fifth International Conference on Mathematical Methods in Physics, Rio de Janeiro, April 24-28 ...
López-Sarrión, Justo, Arias, Paola, Das, Ashok K., Méndez, Fernando, Gamboa, Jorge   +4 more
openaire   +4 more sources

Frequency variation for in vacuo photon propagation in the Standard-Model Extension

European Physical Journal C: Particles and Fields, 2019
In the presence of Lorentz Symmetry Violation (LSV) associated with the Standard-Model Extension (SME), we have recently shown the non-conservation of the energy-momentum tensor of a light-wave crossing an Electro-Magnetic (EM) background field even when
José A. Helayël-Neto, Alessandro D. A. M. Spallicci   +1 more
doaj   +1 more source

Lorentz invariance violation in top-down scenarios of ultrahigh energy cosmic ray creation

, 2004
The violation of Lorentz invariance (LI) has been invoked in a number of ways to explain issues dealing with ultrahigh energy cosmic ray (UHECR) production and propagation.
C. Barbot, C.T. Hill, D. Colladay, D.J. Bird, D.J.H. Chung, D.J.H. Chung, D.J.H. Chung, D.J.H. Chung, Edward W. Kolb, F. Halzen, F.W. Stecker, G.T. Zatsepsin, H. Sato, H. Vankov, I.F.M. Albuquerque, J. Alfaro, J. Alfaro, James R. Chisholm, K. Benakli, K. Greisen, K. Shinozaki, M. Ave, M. Birkel, O. Bertolami, O. Bertolami, P. Bhattacharjee, P. Blasi, P. Blasi, R. Aloisio, S. Coleman, S. Coleman, S. Sarkar, S.L. Dubovsky, T. Jacobson, T. Jacobson, T. Kifune, V. Berezinsky, V. Berezinsky, V. Berezinsky, V. Kuzmin, V. Kuzmin, V. Kuzmin, V.A. Kuzmin   +42 more
core   +1 more source

Potential constrains on Lorentz invariance violation from the HAWC TeV gamma-rays

, 2017
Astrophysical scenarios provide a unique opportunity to test the possible signatures of Lorentz Invariance Violation (LIV) due to the high energies and the very long distances they involve.
Martínez-Huerta, H.
core   +1 more source

Study of Lorentz invariance violation in polarized top quark decay

European Physical Journal C: Particles and Fields
Different processes have yet studied the effect of Lorentz symmetry violation and different limits have determined for the Lorentz violation (LV) coefficients.
Taghi Ebrahimi, S. Mohammad Moosavi Nejad, Zahra Rezaei   +2 more
doaj   +1 more source

Lorentz invariance violation induced threshold anomaly versus very-high energy cosmic photon emission from GRB 221009A [PDF]

Astroparticle physics, 2022
Hao Li, B. Ma
semanticscholar   +1 more source

Acoustic Tests of Lorentz Symmetry Using Quartz Oscillators

Physical Review X, 2016
We propose and demonstrate a test of Lorentz symmetry based on new, compact, and reliable quartz oscillator technology. Violations of Lorentz invariance in the matter and photon sector of the standard model extension generate anisotropies in particles ...
Anthony Lo, Philipp Haslinger, Eli Mizrachi, Loïc Anderegg, Holger Müller, Michael Hohensee, Maxim Goryachev, Michael E. Tobar   +7 more
doaj   +1 more source

Lorentz Invariance Violation from String Theory

, 2007
In this brief, and by no means complete, review I discuss situations in string theory, in which Lorentz Invariance Violation may occur in a way consistent with world-sheet conformal invariance, thereby leading to acceptable, in principle, string backgrounds.
openaire   +2 more sources

Trends in the Second Law of Thermodynamics. [PDF]

Entropy (Basel), 2023
Zivieri R.
europepmc   +1 more source

A way forward for fundamental physics in space. [PDF]

NPJ Microgravity, 2022
Bassi A, Cacciapuoti L, Capozziello S, Dell'Agnello S, Diamanti E, Giulini D, Iess L, Jetzer P, Joshi SK, Landragin A, Poncin-Lafitte CL, Rasel E, Roura A, Salomon C, Ulbricht H.   +14 more
europepmc   +1 more source