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Quantum Field Theory
This chapter covers the essentials of quantum field theory. Topics discussed include the curvature of gauge fields and the definition of the...
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Nonlocal quantum field theory and quantum entanglement
We discuss the nonlocal nature of quantum mechanics and the link with relativistic quantum mechanics such as formulated by quantum field theory. We...
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Classical statistical simulation of quantum field theory
We propose a procedure of computing the n-point function in perturbation theory of the quantum field theory as the average over the complex Gaussian...
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Simulating Nelsonian Quantum Field Theory
We describe the picture of physical processes suggested by Edward Nelson’s stochastic mechanics when generalized to quantum field theory regularized...
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Conformal Quantum Field Theory
In this chapter, a non-perturbative definition of quantum field theory in Minkowski space-time is given starting from the Wightman axioms. The...
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Introduction to Perturbative Quantum Field Theory
The first chapter is a short, but largely self-contained, introduction to perturbative quantum field theory and its description in terms of Feynman...
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Quantum computation of phase transition in interacting scalar quantum field theory
It has been demonstrated that the critical point of the phase transition in scalar quantum field theory with a quartic interaction in one space...
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Unfolded dynamics approach and quantum field theory
We study quantization of a self-interacting scalar field within the unfolded dynamics approach. To this end we find and analyze a classical unfolded...
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Structural Algebraic Quantum Field Theory: Particles with Structure
AbstractConventional quantum field theory is a method for studying structureless elementary particles. Non-elementary particles, on the other hand,...
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Quantum Field Theory An Introduction
This book is a pedagogical introduction to quantum field theory, suitable for a students’ first exposure to the subject. It assumes a minimal amount...
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Topological Quantum Field Theory and Algebraic Structures*
These notes are from lectures given at the Quantum field theory and noncommutative geometry workshop at Tohoku University in Sendai, Japan from...
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Eliminating the ‘Impossible’: Recent Progress on Local Measurement Theory for Quantum Field Theory
Arguments by Sorkin (Impossible measurements on quantum fields. In: Directions in general relativity: proceedings of the 1993 International...
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Quantum Scalar Field Theory Based on an Extended Least Action Principle
Recently it is shown that the non-relativistic quantum formulations can be derived from an extended least action principle Yang (2023). In this...
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Krylov complexity in quantum field theory, and beyond
We study Krylov complexity in various models of quantum field theory: free massive bosons and fermions on flat space and on spheres, holographic...
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Undecidable problems in quantum field theory
We point out that some questions in quantum field theory are undecidable in a precise mathematical sense. More concretely, it will be demonstrated...
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Euclidean Quantum Field Theory on Commutative and Noncommutative Spaces
I give an introduction to Euclidean quantum field theory from the point of view of statistical physics, with emphasis both on Feynman graphs and on...
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Quantum General Relativity and Effective Field Theory
This is a review of some of the concepts and results of the effective field theory treatment of quantum general relativity. Included are lessons of...
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Universal fine grained asymptotics of free and weakly coupled quantum field theory
We give a rigorous proof that in any free quantum field theory with a finite group global symmetry G, on a compact spatial manifold, at sufficiently...
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Quantum Field Theory By Academician Prof. Kazuhiko Nishijima - A Classic in Theoretical Physics
This book is a translation of the 8th edition of Prof. Kazuhiko Nishijima’s classical textbook on quantum field theory. It is based on the lectures...
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An effective field theory for non-maximal quantum chaos
In non-maximally quantum chaotic systems, the exponential behavior of out-of-time-ordered correlators (OTOCs) results from summing over exchanges of...