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A Lorentzian orbifold is an orbifold with Lorentzian structure, hence like a Lorentzian manifold but possibly with singularities modeled on fixed points of local actions of finite groups by Lorentz transformations.
Discussion of Lorentzian orbifolds as target spacetimes in string theory:
Gary Horowitz, Alan R. Steif, Singular string solutions with nonsingular initial data, Physics Letters B Volume 258, Issues 1–2, 4 April 1991, Pages 91-96 (doi:10.1016/0370-2693(91)91214-G)
Nikita Nekrasov, Milne Universe, Tachyons, and Quantum Group, Surveys High Energ. Phys. 17 (2002) 115-124 (arXiv:hep-th/0203112)
Hong Liu, Gregory Moore, Nathan Seiberg, Strings in a Time-Dependent Orbifold, JHEP 0206:045, 2002 (arXiv:hep-th/0204168)
Hong Liu, Gregory Moore, Nathan Seiberg, Strings in Time-Dependent Orbifolds, JHEP 0210:031, 2002 (arXiv:hep-th/0206182)
Boris Pioline, Aspects de la théorie des cordes enchamp de fond dépendant du temps, LPTHE, Paris 2003 (pdf)
Micha Berkooz, Dori Reichmann, A Short Review of Time Dependent Solutions and Space-like Singularities in String Theory, Nucl. Phys. Proc. Suppl. 171:69-87, 2007 (arXiv:0705.2146)
Classification of compact 2d Lorentzian orbifolds:
conformal maps between Lorentzian orbifolds:
Last revised on July 16, 2020 at 18:05:21. See the history of this page for a list of all contributions to it.