Events

Event Information:

• Tue

  22

  Mar

  2016

  Colloquium

  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.