Ralf Lehnert

IUCSS Workshop on

Gravitational Aspects of Lorentz Violation

March 13-14, 2021

Indiana University, Bloomington

An IUCSS Workshop on Gravitational Aspects of Lorentz Violation will be held as an online event hosted by the Physics Department, Indiana University in Bloomington, Indiana, U.S.A. on Saturday and Sunday March 13-14, 2021. The second day of the Workshop coincides with Albert Einstein's 142nd birthday.

The Workshop is aimed primarily at the theory of perturbative Lorentz and diffeomorphism breaking in gravitational contexts, with particular emphasis on EFT methods and the gravitational SME. Relevant topics in this active field will be summarized and discussed, and prospects for future explorations will be examined. The Workshop format will consist of short live-streamed presentations and discussion time.

Specific topics to be covered at the Workshop are expected to include:

  • origins and mechanisms for the breakdown of spacetime symmetries
  • spontaneous and explicit violations of Lorentz and diffeomorphism invariance
  • no-go results
  • toy models for spontaneous Lorentz and diffeomorphism breaking
  • nonminimal gravitational sector of the SME
  • Nambu-Goldstone, massive, gauge, and auxiliary modes
  • classical and quantum aspects of Lorentz-violating models
  • EFT methods for Lorentz breaking involving gravity
  • gravitational waves, black holes, equivalence principle
  • cosmological aspects of Lorentz violation
  • massive gravity

There is no registration fee for this Workshop, but online registration before Tuesday March 9 is required. The total attendance is likely to be capped, so early registration is advised to avoid disappointment.