Stringy space-time foam refraction and γ-ray astronomy

✍ Scribed by N.E. Mavromatos

• Book ID: 105357860
• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 166 KB
• Volume: 58
• Category: Article
• ISSN: 0015-8208
• DOI: 10.1002/prop.201000052

✦ Synopsis

Abstract

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.