Titlebook: Quantum Field Theory; Competitive Models Bertfried Fauser,Jürgen Tolksdorf,Eberhard Zeidler Book 2009 Birkhäuser Basel 2009 Feynmann path i

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航海太平洋

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Canonical Quantum Gravity and Effective Theory,m gravity theories, such as loop quantum gravity, are not directly accessible to the usual techniques of computing effective actions, equivalent methods to derive an effective Hamiltonian and effective equations have recently been developed. This provides means to study the semiclassical limit of lo

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From Discrete Space-Time to Minkowski Space: Basic Mechanisms, Methods and Perspectives,duction to the discrete setting, we explain a mechanism of spontaneous symmetry breaking which leads to the emergence of a discrete causal structure. As methods to study the transition between discrete space-time and Minkowski space, we describe a lattice model for a static and isotropic space-time,

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, ,-Algebra Connections and Applications to String- and Chern-Simons ,-Transport, lifts through higher String-like extensions of Lie algebras. We find (generalized) Chern-Simons and BF-theory functionals this way and describe aspects of their parallel transport and quantization..It is known that over a D-brane the Kalb-Ramond background field of the string restricts to a 2-bundl

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