scholarly journals Gamma ray burst constraints on ultraviolet Lorentz invariance violation

2006 ◽  
Vol 643 (2) ◽  
pp. 81-85 ◽  
Author(s):  
Tina Kahniashvili ◽  
Grigol Gogoberidze ◽  
Bharat Ratra
2019 ◽  
Vol 99 (4) ◽  
Author(s):  
Rodrigo Guedes Lang ◽  
Humberto Martínez-Huerta ◽  
Vitor de Souza

2020 ◽  
Vol 80 (11) ◽  
Author(s):  
Tao Zhang ◽  
Fu-Wen Shu ◽  
Qing-Wen Tang ◽  
Dong-Hui Du

AbstractIn this work we focus on a toy model: ($$3+1$$ 3 + 1 )-dimensional Hořava–Lifshitz gravity coupling with an anisotropic electromagnetic (EM) field which is generated through a Kaluza-Klein reduction of a ($$4+1$$ 4 + 1 )-dimensional Hořava–Lifshitz gravity. This model exhibits a remarkable feature that it has the same velocity for both gravitational and electromagnetic waves. This feature makes it possible to restrict the parameters of the theory from GRB 170817A. In this work we use this feature to discuss possible constraints on the parameter $$\beta $$ β in the theory, by analyzing the possible Lorentz invariance violation effect of the GRB 170817A. This is achieved by analyzing potential time delay of gamma-ray photons in this event. It turns out that it places a stringent constraint on this parameter. In the most ideal case, it gives $$|1-\sqrt{\beta }|<(10^{-19}-10^{-18})$$ | 1 - β | < ( 10 - 19 - 10 - 18 ) .


2012 ◽  
Vol 21 (08) ◽  
pp. 1250070 ◽  
Author(s):  
ORLANDO LUONGO ◽  
DAMIANO TOMMASINI

We consider the neutrino fluxes and photon lensing from Gamma Ray Bursts and galaxy shocks, in order to predict measurable quantum corrections at late times. In particular, changes of the Einstein shell condition are expected to modify the time delay of neutrinos and photons at the Planck scale. Hence, we study the consequences of the Lorentz invariance violation through the use of such photons and neutrinos. The Lorentz invariance violation is expected to depend on the cosmological model, considered a priori in the Einstein equations; therefore, we focus on the so-called Hořava model which has recently attracted great interest. In addition, we compare our results with the ΛCDM and modified Chaplygin gas models, respectively. We infer several theoretical constraints which could reveal such quantum gravity effects.


2021 ◽  
Vol 81 (8) ◽  
Author(s):  
Petr Satunin

AbstractWe present new two-sided constraints on the Lorentz Invariance violation energy scale for photons with quartic dispersion relation from recent gamma ray observations by the Tibet-AS$$\gamma $$ γ and LHAASO experiments. The constraints are based on the consideration of the processes of photon triple splitting (superluminal scenario) and the suppression of shower formation (subluminal). The constraints in the subluminal scenario are better than the pair production constraints and are the strongest in the literature.


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