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From Diffeomorphisms to Dark Energy?
https://doi.org/10.1142/S0217732303012702Cited by:4 (Source: Crossref)
Abstract
There are two physical actions that have a natural setting in terms of the coadjoint representation of the algebra of diffeomorphisms and of affine Lie algebras. One is the usual geometric action that comes from coadjoint orbits. The other action lives on the phase space that is transverse to the orbits and are called transverse actions, where Yang-Mills theory in two dimensions is an example. Here we show that the transverse action associated with the Virasoro algebra might contain clues for a theory for dark energy. These actions might also suggests a mechanism for symmetry changing.
PACS: 04.65.+e, 02.20.Sv, 11.30.Pb, 11.25.-w, 03.65.Fd
