Quantum Vacuum and Gravitation: Testing General Relativity in Cosmology

Positivity Constraints on Effective Field Theories of Gravity

20 Mar 2017, 10:45

1h

02.430 (Mainz Institute for Theoretical Physics, Johannes Gutenberg University)

Speaker

Dr Andrew Tolley (Imperial College London)

Description

I will discuss how the constraints from unitarity and analyticity lead to an infinite number of positivity constraints on low energy effective theories, starting initially with scalars and then generalising to theories with spin, in particular gravitational theories.