Vacuum Energy Generating Mechanisms in Cosmic Expansion with Natural UV Cutoff

Details Vacuum Energy Generating Mechanisms in Cosmic Expansion with Natural UV Cutoff Vacuum Energy Generating Mechanisms in Cosmic Expansion with Natural UV Cutoff

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008mgm..conf.1770k&link_type=abstract

"THE ELEVENTH MARCEL GROSSMANN MEETING On Recent Developments in Theoretical and Experimental General Relativity, Gravitation an

Physics

Scientific paper

In expanding space-times with a natural ultraviolet cutoff, new comoving modes are continually being generated for each field and, a priori, each mode should come with gravitating ground state energy. Once generated, the ground state energy of a mode becomes diluted as its proper wavelength increases. Given a model for quantum gravity, the balance of the two effects can be nontrivial depending, for example, on the effective dispersion relations close to the scale of the natural UV cutoff.

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