Search
Search Results
-
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...
-
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...
-
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...
-
Non-local hyperdifferential momentum operators in quantum field theory free from tachyons: the case of neutral mesons
An extended non-local field equations characterised by modified dispersion relations have been constructed based on non-local differential and...
-
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...
-
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...
-
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...
-
Decoding quantum field theory with machine learning
We demonstrate how one can use machine learning techniques to bypass the technical difficulties of designing an experiment and translating its...
-
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...
-
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...
-
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,...
-
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...
-
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...
-
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...
-
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...
-
Local Quantum Joint Entropy and Quantum Coherence Information Based on Local Quantum Bernoulli Noise
Local quantum Bernoulli noises (LQBNs) is a family of local annihilation operators and local creation operators acting on Bernoulli functions. In...
-
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...
-
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...
-
Quantum field theory with ghost pairs
We explicitly show that general local higher-derivative theories with only complex conjugate ghosts and normal real particles are unitary at any...
-
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...