Department of Physics and Astronomy

University of Mississippi


Event Information:

  • Tue


    4:00 pmLewis Hall 101

    Thomas Sotiriou
    School of Physics & Astronomy
    University of Nottingham

    Black Holes Without Relativity

    Lorentz symmetry is central to the concept of a black hole, as it precludes superluminal motion. It is not obvious that one can even define what a black hole is if Lorentz symmetry is abandoned, so one might expect that any observational evidence supporting the existence of black holes will impose very stringent constraints on Lorentz violations. I will discuss some basic aspects of causality in theories that violate Lorentz symmetry and I will argue that, remarkably, the concept of a black hole survives in these theories. After defining the appropriate notion of black hole, I will explore their basic aspects and discuss how they differ from black holes in General Relativity.