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Showing 1 to 3 of 3 for “"Algebraic quantum field theory"”.
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Quantum Fields on BTZ Black Holes
In this thesis we investigate some aspects of Quantum Fields on BTZ black holes in 1+1 and 1+2 dimensions. More specifically, we study how a ground state in AdS spacetime becomes a thermal state when restricted to the exterior region of the BTZ black hole. This ground state is for the quantum …
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Detektory Arakiego-Haaga, teoria Mourre’a i problem asymptotycznej zupełności w algebraicznej teorii pól kwantowych
… brak osobliwego spektrum ciągłego. Scattering theory describes the asymptotic evolution of systems of interacting particles. A key concept in this area is asymptotic completeness, which is well-understood in non relativistic quantum mechanics but remains a challenging problem in local …
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Dynamical C*-Algebras and Quadratic Perturbations for Fermions
We study interacting Fermionic fields on globally hyperbolic spacetimes in the context of dynamical C*-algebras. Our focus is on a particular class of interactions, that of kinetic perturbations; we provide their definition and we show that these induce, in the fermionic dynamical C*-algebra, …