Universidad Nacional Autónoma De Mexico (UNAM)
Talks by Daniel Sudarsky
A novel approach to diffusing the black hole information paradox
We will briefly review the issue of "information loss" during the Hawking evaporation of a black hole, and argue that the quantum dynamical reduction theories, which have been developed to address the measurement problem in quantum mechanics, possess the elements to diffuse the ``paradox” at the qualitative and at the quantitative level, leading to what seems to be an overall coherent picture.
Quantum fluctuations as the seeds of cosmic structure.
Although the inflationary predictions for the primordial power spectrum of density inhomogeneities seem very successful, there is an obscure part in our understanding of the emergence of the seeds of cosmic structure: How does a universe which at one pint in time is described by a state that is fully homogeneous and isotropic, evolve into a state that is not, given that the dynamics does not contain any source for the undoing of such symmetry?
Lorentz symmetry: Broken, intact or deformed?

Rafael Sorkin Perimeter Institute for Theoretical Physics

Sabine Hossenfelder Frankfurt Institute for Advanced Studies (FIAS)

David Mattingly University of New Hampshire

Niayesh Afshordi University of Waterloo

Daniel Sudarsky Universidad Nacional Autónoma De Mexico (UNAM)

Stefano Liberati SISSA Scuola Internazionale Superiore di Studi Avanzati

Joao Magueijo Imperial College London
I will discuss whether higher energy Lorentz violation should be considered a natural expectation in theories of quantum gravity with a preferred frame.
_____________________________
If spacetime is a causal set then Lorentz symmetry is unbroken
_____________________________
Quantum superpositions of the speed of light
Quantum Gravity Effects in the (Early and Late) Universe

Stephon Alexander Brown University

Daniel Sudarsky Universidad Nacional Autónoma De Mexico (UNAM)

Daniel Litim University of Sussex

Robert Brandenberger McGill University  Department of Physics
Improved test of the Equivalence Principle as a probe of quantum gravity

James Overduin Towson University

Daniel Sudarsky Universidad Nacional Autónoma De Mexico (UNAM)