Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 2250155 |
| Fachzeitschrift | International Journal of Geometric Methods in Modern Physics |
| Jahrgang | 19 |
| Ausgabenummer | 10 |
| Publikationsstatus | Veröffentlicht - 15 Sept. 2022 |
| Extern publiziert | Ja |
Abstract
In this work, we continue the systematic study of observable effects emerging from modified dispersion relations. We study the motion of test particles subject to a general first-order modification of the general relativistic dispersion relation as well as subject to the κ-Poincaré dispersion relation in spherical symmetry. We derive the corrections to the photon sphere, the black hole shadow, the and the light deflection and identify the additional dependence of these observables on the photons' four momentum, which leads to measurable effects that can be compared to experimental data. The results presented here can be interpreted in two ways, depending on the origin of the modified dispersion relation: on the one hand as prediction for traces of quantum gravity, when the modified dispersion relation is induced by phenomenological approaches to quantum gravity, on the other hand as predictions of observables due to the presence of a medium, like a plasma, which modifies the dispersion relation of light on curved spacetimes.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Physik und Astronomie (sonstige)
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in: International Journal of Geometric Methods in Modern Physics, Jahrgang 19, Nr. 10, 2250155, 15.09.2022.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Observables from spherically symmetric modified dispersion relations
AU - Laanemets, Dagmar
AU - Hohmann, Manuel
AU - Pfeifer, Christian
N1 - Publisher Copyright: © 2022 World Scientific Publishing Company.
PY - 2022/9/15
Y1 - 2022/9/15
N2 - In this work, we continue the systematic study of observable effects emerging from modified dispersion relations. We study the motion of test particles subject to a general first-order modification of the general relativistic dispersion relation as well as subject to the κ-Poincaré dispersion relation in spherical symmetry. We derive the corrections to the photon sphere, the black hole shadow, the and the light deflection and identify the additional dependence of these observables on the photons' four momentum, which leads to measurable effects that can be compared to experimental data. The results presented here can be interpreted in two ways, depending on the origin of the modified dispersion relation: on the one hand as prediction for traces of quantum gravity, when the modified dispersion relation is induced by phenomenological approaches to quantum gravity, on the other hand as predictions of observables due to the presence of a medium, like a plasma, which modifies the dispersion relation of light on curved spacetimes.
AB - In this work, we continue the systematic study of observable effects emerging from modified dispersion relations. We study the motion of test particles subject to a general first-order modification of the general relativistic dispersion relation as well as subject to the κ-Poincaré dispersion relation in spherical symmetry. We derive the corrections to the photon sphere, the black hole shadow, the and the light deflection and identify the additional dependence of these observables on the photons' four momentum, which leads to measurable effects that can be compared to experimental data. The results presented here can be interpreted in two ways, depending on the origin of the modified dispersion relation: on the one hand as prediction for traces of quantum gravity, when the modified dispersion relation is induced by phenomenological approaches to quantum gravity, on the other hand as predictions of observables due to the presence of a medium, like a plasma, which modifies the dispersion relation of light on curved spacetimes.
KW - Modified dispersion relations
KW - quantum gravity phenomenology
KW - spherical symmetry
KW - Shapiro delay
KW - black hole shadow
KW - light deflection
UR - http://www.scopus.com/inward/record.url?scp=85133949200&partnerID=8YFLogxK
U2 - 10.1142/S0219887822501559
DO - 10.1142/S0219887822501559
M3 - Article
VL - 19
JO - International Journal of Geometric Methods in Modern Physics
JF - International Journal of Geometric Methods in Modern Physics
SN - 0219-8878
IS - 10
M1 - 2250155
ER -