Quantum Field Theory
Homotopy quantum field theory and quantum groups
... a quantum field theory in general. Roughly, a quantum field theory takes as input spaces and space-times and associates to them state spaces and time evolution ...ground ...
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Introduction to Quantum Field Theory
... Classical Field Theory 4.1 Introduction We have now seen how Quantum Field Theory is defined as quantum mechanics with an infinite number of ...
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An Introduction to Quantum Field Theory
... the quantum field theory in a mathematically more rigorous way by quantizing the theory in a finite volume V ...”Quantum Field Theory” by Mandl and Shaw for a discussion ...
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Quantum Field Theory I
... Motivation Quantum field theory (QFT) is a rigorous and beautiful framework for describing micro- scopic excitations, elementary particles and ...of quantum mechanics and relativity in a ...
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The correspondence principle in quantum field theory and quantum gravity
... acceptable quantum field theory should only contain physical particles and possibly fakeons, but not ...explain quantum gravity by means of a quantum field theory that is ...
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Unusual signs in quantum field theory
... the quantum field theory can be calculated using ...Effective field theory, in particular chiral perturbation theory, provides such a ...perturbation theory, have recently ...
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Probabilities and signalling in quantum field theory
... We present an approach to computing probabilities in quantum field theory for a wide class of source–detector models. The approach works directly with probabilities and not with squared matrix ...
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Causal Structures in Quantum Field Theory
... best theory, such as quantum field theory (in various formulations), general theory of relativity, string theory, loop quantum gravity and so ...with quantum ...
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Primitive ontology and quantum field theory
... regularized quantum field theory (QFT), one can associate a particle theory—describing moving particles—that is empirically equivalent to that ...
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Quantum Field Theory and Knot Invariants
... +86-21-62489821 Quantum Field Theory is now well recognized as a powerful tool not only in Particle Physics but also in Nuclear Physics, Condensed Matter Physics, Solid State Physics and even in ...
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A Cohomological Perspective on Algebraic Quantum Field Theory
... To first order, a deformation of a QFT model is described by a Hochschild co- homology class. A deformation could, for example, correspond to adding an in- teraction term to a Lagrangian. The cohomology class for such an ...
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Supergeometry in locally covariant quantum field theory
... covariant quantum field ...ordinary quantum field theory, and show that, starting from a few represen- tation theoretic and geometric data, one can construct a functor A : SLoc → S ∗ ...
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Quantum field theory via vertex algebras
... conformal field theory “chiral algebras” ...of quantum field theories such as the free boson in D > 2 dimensions and the massless Thirring model and extract the corresponding vertex ...
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Reflection Positivity: A Quantum Field Theory Connection
... As discussed in the introduction and chapter 2, reflection positivity is a key component in any viable quantum field theory. Unitarity had been implemented in the axiom systems of Atiyah and Segal ...
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Transaction and Non Locality in Quantum Field Theory
... about quantum field theory? Since its appearing Quantum Theory has put radical questions which have challenged not only Clas- sical Physics, but the structure itself of the “explanation” ...
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Thermal equilibrium states in perturbative Algebraic Quantum Field Theory in relation to Thermal Field Theory
... a quantum field theory based on the above axioms has been called Algebraic QFT ...the quantum parameter ~, as will be described in the first ...of quantum field theories is ...
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The Quantum Field Theory on Which the Everyday World Supervenes
... correct theory of higher levels is understood, which would be ...a theory of ...correct theory of everything might require a relatively small extrapolation of our current understanding of ...
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No resonant tunneling in standard scalar quantum field theory
... the quantum field theory in terms of infinite dimensional quantum mechanics and uti- lize the “Most probable escape path” (MPEP) as the class of paths which dominate the path integral in the ...
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QUANTUM FIELD THEORY BASICS
... between the conductors. An equivalent explanation attributes the force to a change of vacuum energy of the electromagnetic field induced by the presence of the plates. The latter one has a quite efficient ...
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Quantum Field Theory and Cosmology
... Classically one seeks further restricting conditions leading to strong energy condition −→ T µν ζ µ is future-directed timelike or null ∀ζ µ timelike Problem: For classical matter it is fine, but, for interacting ...
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