Loop quantum gravity vacuum with nondegenerate geometry

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autor(en): Sahlmann H
Zeitschrift: Symmetry Integrability and Geometry-Methods and Applications
Verlag: National Academy of Science of Ukraine
Jahr der Veröffentlichung: 2012
Band: 8
ISSN: 1815-0659


Abstract


In loop quantum gravity, states of the gravitational field turn out to be excitations over a vacuum state that is sharply peaked on a degenerate spatial geometry. While this vacuum is singled out as fundamental due to its invariance properties, it is also important to consider states that describe non-degenerate geometries. Such states have features of Bose condensate ground states. We discuss their construction for the Lie algebra as well as the Weyl algebra setting, and point out possible applications in effective field theory, Loop Quantum Cosmology, as well as further generalizations.



FAU-Autoren / FAU-Herausgeber

Sahlmann, Hanno Prof. Dr.
Professur für Theoretische Physik

Zuletzt aktualisiert 2018-19-10 um 14:50