1,221 research outputs found
Canonical D = 1 supergravity framework for FLRW cosmology
We construct an extension of standard flat FLRW cosmology with matter,
possessing local D = 1, N = 1 proper-time supersymmetry. The fundamental
equation for the resulting mini-superspace models of quantum universes is a
Dirac-like analogue of the Friedmann and Wheeler-DeWitt equations. We provide
solutions of this equation for specific matter configurations based on the
supersymmetric O(3) and O(2, 1) sigma-models. It turns out that in the compact
model the volume rate of growth of the universe is quantized and non-vanishing
due to the zero-point energy of the scalar fields. In the non-compact model the
spectrum of the growth rates is continuous but subject to an uncertainty
relation involving the scale and the growth factor.Comment: 14 pages, no figure
Bedrijfsplannen voor een 24 ha bedrijf op zandgrond : gebaseerd op de mogelijkheden van het stikstofproefbedrijf van A. de Kock te Bergen op Zoom
D 4.1: Protocol for converting data sources into common standards for input into WP3 and WP9 : Version 3.0 Document date: 2009-10-10
- …