Deformations of quantum field theories on de Sitter spacetime

Eric Morfa-Morales
May 24, 2011
Quantum field theories on de Sitter spacetime with global U(1) gauge symmetry are deformed using the joint action of the internal symmetry group and a one-parameter group of boosts. The resulting theory turns out to be wedge-local and non-isomorphic to the initial one for a class of theories, including the free charged Dirac field. The properties of deformed models coming from inclusions of CAR-algebras are studied in detail.
open access link J. Math. Phys. 52, 102304 (2011) article file
@article{MorfaMorales:2011nc, author = "Morfa-Morales, Eric", title = "{Deformations of quantum field theories on de Sitter spacetime}", journal = "J. Math. Phys.", volume = "52", year = "2011", pages = "102304", doi = "10.1063/1.3653545", eprint = "1105.4856", archivePrefix = "arXiv", primaryClass = "math-ph", SLACcitation = "%%CITATION = ARXIV:1105.4856;%%" }

Keywords: 
QFT on curved spacetimes, deformations