Consequences of a Cosmological Phase Transition at the TeV Scale |
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Authors: | James Lindesay |
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Institution: | (1) Computational Physics Laboratory, Howard University, Washington, DC 20059, USA |
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Abstract: | A finite vacuum energy density implies the existence of a UV scale for gravitational modes. This gives a phenomenological
scale to the dynamical equations governing the cosmological expansion that must satisfy constraints consistent with quantum
measurability and spatial flatness. Examination of these constraints for the observed dark energy density establishes a time
interval from the transition to the present, suggesting major modifications from the thermal equations of state far from Planck
density scales. The assumption that a phase transition initiates the radiation dominated epoch is shown under several scenarios
to be able to produce fluctuations to the CMB of the order observed. Quantum measurability constraints (eg. uncertainly relations)
define cosmological scales bounded by luminal expansion rates. It is shown that the dark energy can consistently be interpreted
as being due to the vacuum energy of collective gravitational modes which manifest as the zero-point motions of coherent Planck
scale mass units prior to the UV scale onset of gravitational quantum de-coherence for the cosmology. A cosmological model
with multiple scales, one of which replaces an apparent cosmological “constant”, is shown to reproduce standard cosmology
during intermediate times, while making the exploration of the early and late time cosmology more accessible.
Talk presented at the 2006 biennial conference of the International Association for Relativistic Dynamics, June 12–14, University
of Connecticut (Storrs). |
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Keywords: | dark energy cosmological scale ultraviolet cutoff for gravitational modes |
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