[ Seminarios agosto a diciembre 2017 ]

Quantum Theory and Cosmology away from the Planck Regime

Daniel Sudarsky (ICN-UNAM)

RESUMEN: We will review the so called "measurement problem" in quantum theory, argue that it becomes exacerbated in the cosmological context and discuss how this connects with some problematic aspects of the standard accounts for the inflationary origin of cosmic structure. We will argue that new physics, possibly tied to novel aspects of quantum gravity, should be invoked if we want to fully justify the phenomenological success of the basic inflationary scheme and discuss how that can be accommodated within our current understanding of the interface of quantum theory and gravitation. We will then see, in particular that, such view leads to a dramatically modified outlook to that presented by the standard treatments, regarding the famous and yet undetected primordial tensor modes. We will end with a discussion of a novel approach to dealing with the so called "dark energy" puzzle.