PIRSA:C06011 - Natural Ultraviolet Cutoffs In Expanding Space-Times
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The question of how to describe a natural ultraviolet cutoff in an expanding space-time 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.
Organizer(s): Justin Khoury
Collection URL: http://pirsa.org/C06011
Mode creation in expanding universes, through dissipative effects
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Date: 05/09/2006 - 9:00 am
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QFT on a growing lattice
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Date: 05/09/2006 - 11:00 am
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A discrete, Lorentz-invariant wave equation and its continuum limit
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Date: 05/09/2006 - 2:00 pm
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Insights from background independent approaches to quantum gravity
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Date: 05/09/2006 - 4:00 pm
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Black hole evaporation and information
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Date: 05/09/2006 - 6:00 pm
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Questions about high - k phsyics in expanding spacetimes
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Jens Niemeyer - Lehrstuhl für Astronomie Universitat Wurzburg
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Date: 06/09/2006 - 9:00 am
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Inflationary cosmological pertubations of quantum - mechanical origin
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Date: 06/09/2006 - 11:00 am
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Thermodynamics of spacetime
Abstract: I will first argue that the notion of black hole entropy extends universally to causal horizons. Then I will deduce the causal dynamics of spacetime from the equilibrium thermodynamics of causal horizons. Specifically, it will be shown how the Clausius relation dS = dQ/T between entropy change, ener...
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Date: 06/09/2006 - 2:00 pm
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Initial conditions in the presence of a UV cutoff: modified mode equations in inflation
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Date: 06/09/2006 - 4:00 pm
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Towards a generally covariant cutoff using sampling theory
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Date: 06/09/2006 - 4:30 pm
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Thoughts on vacuum growth
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Date: 06/09/2006 - 5:00 pm
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Effective actions for gravity
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Date: 07/09/2006 - 9:00 am
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QFT with minimum length
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Date: 08/09/2006 - 9:00 am
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Generalized Uncertainty Principle
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Ulrich Harbach - Institut für Theoretische Physik Johann Wolfgang Goethe Universitat Frankfurt am Main
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Date: 08/09/2006 - 11:00 am
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Inflationary cosmological pertubations of quantum mechanical origin
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Date: 08/09/2006 - 12:00 pm
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