ar X iv : h ep - t h / 05 05 17 1 v 1 1 8 M ay 2 00 5 SOLDERED BUNDLE GEOMETRY OF THE DE SITTER TOP
نویسنده
چکیده
We prove that the mathematical framework for the de Sitter top system is the de Sitter fiber bundle. In this context, the concept of soldering associated with a fiber bundle plays a central role. We comment on the possibility that our formalism may be of particular interest in different contexts including MacDowell-Mansouri theory, two time physics and oriented matroid theory.
منابع مشابه
ar X iv : h ep - t h / 05 05 17 1 v 2 1 2 A ug 2 00 5 SOLDERED BUNDLE BACKGROUND FOR THE DE SITTER TOP
We prove that the mathematical framework for the de Sitter top system is the de Sitter fiber bundle. In this context, the concept of soldering associated with a fiber bundle plays a central role. We comment on the possibility that our formalism may be of particular interest in different contexts including MacDowell-Mansouri theory, two time physics and oriented matroid theory.
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The Casimir stress on two concentric spherical shell in de Sitter background for massless scalar field is calculated. The scalar field satisfies Dirichlet boundary conditions on the spheres. The metric is written in conformally flat form to make maximum use of Minkowski space calculations. Then the Casimir stress is calculated for inside and outside of the shell with different backgrounds. This...
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تاریخ انتشار 2005