Observables from modified dispersion relations

dr. Christian Pfeifer
Center of Applied Space Technology and Microgravity (ZARM), University of Bremen

Sažetak:
 

Modified dispersion relations are one way to effectively describe aspects of quantum gravity, in particular the propagation of particles on quantum spacetime. In this talk I discuss how one can understand dispersion relations on curved spacetime as Hamilton functions. I will present how modifications of the general relativistic dispersion relation influence observables like the time of arrival of photons, the shadow of black holes, gravitational lensing and the Shapiro delay.