Description
The question of how to describe a natural ultraviolet cutoff in an expanding spacetime is of significance in several respects. First, it concerns the fate of general covariance in the presence of a natural UV cutoff. Second, it concerns the continued generating of degrees of freedom through expansion, which carries with it the possibility of an associated generating of vacuum energy. Finally, through inflation, a natural ultraviolet cutoff may have left observable imprints in the CMB.
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Mode creation in expanding universes, through dissipative effects
Renaud Parentani University of ParisSaclay


A discrete, Lorentzinvariant wave equation and its continuum limit
Rafael Sorkin Perimeter Institute for Theoretical Physics

Insights from background independent approaches to quantum gravity
Lee Smolin Perimeter Institute for Theoretical Physics

Black hole evaporation and information
Lee Smolin Perimeter Institute for Theoretical Physics

Questions about high  k phsyics in expanding spacetimes
Jens Niemeyer University of Würzburg

Inflationary cosmological pertubations of quantum  mechanical origin
Jerome Martin Institut d'Astrophysique de Paris

Thermodynamics of spacetime
Ted Jacobson University of Maryland, College Park

Initial conditions in the presence of a UV cutoff: modified mode equations in inflation
Larissa Lorenz Institute for Astrophysics


Thoughts on vacuum growth
Ted Jacobson University of Maryland, College Park
