Stringy space-time foam refraction and gamma-ray astronomy

Research output: Contribution to journalConference paper


I review briefly a model of space-time foam in string theory that generates a non-trivial refractive index for photons in a way compatible with current astrophysical measurements on delayed arrivals of more energetic photons from distant cosmic sources. In this context, I also discuss the recent measurements by FERMI/Large Area Telescope on the highly energetic Gamma Ray Burst GRB 090510, and I explain under what conditions for the model they can become compatible with the other measurements. (C) 2010 WILEY-VCH Verlag GmbH & Co, KGaA. Weinheim
Original languageEnglish
Pages (from-to)779 - 782
Number of pages4
JournalFortschritte der Physik
Issue number7-9
Publication statusPublished - Jul 2010
EventSchool and Workshops on Elementary Particle Physics and Gravity - Corfu, Greece
Duration: 30 Aug 200913 Sept 2009


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