-
61
Quantum field theory of point particles and strings
Published 1992Subjects: “…Quantum field theory…”
-
62
-
63
-
64
-
65
Quantum field theory for spin operator of the photon
Published 2022-05-01“…Within quantum electrodynamics (QED), even though the spin of the Dirac particle is well defined, there exist open questions on the quantized description of spin of the gauge field particle—the photon. Using quantum field theory, we discover the quantum operators for the spin angular momentum (SAM) S_{M}=(1/c)∫d^{3}xπ×A and orbital angular momentum (OAM) L_{M}=−(1/c)∫d^{3}xπ^{μ}x×∇A_{μ} of the photon, where π^{μ} is the conjugate canonical momentum of the gauge field A^{μ}. …”
Get full text
Article -
66
-
67
Decoding quantum field theory with machine learning
Published 2023-08-01Subjects: “…Lattice Quantum Field Theory…”
Get full text
Article -
68
-
69
Quantum Field Theory Representation in Quantum Computation
Published 2021-11-01Subjects: Get full text
Article -
70
Unfolded dynamics approach and quantum field theory
Published 2023-12-01“…Then we systematically construct three different but related unfolded formulations of the corresponding quantum field theory, supporting them with illustrative calculations: an unfolded functional Schwinger-Dyson system, an unfolded system for correlation functions and an unfolded effective system for vertex functions. …”
Get full text
Article -
71
Aspects of non-relativistic quantum field theories
Published 2024-03-01“…Abstract Non-relativistic quantum field theory is a framework that describes systems where the velocities are much smaller than the speed of light. …”
Get full text
Article -
72
Classical statistical simulation of quantum field theory
Published 2024-01-01“…Abstract 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 noises in a classical theory. …”
Get full text
Article -
73
-
74
Symmetries in Quantum Field Theory and Quantum Gravity
Published 2021“…An essential point, which we dwell on at length, is precisely defining what we mean by gauge and global symmetries in the bulk and boundary. Quantum field theory results we meet while assembling the necessary tools include continuous global symmetries without Noether currents, new perspectives on spontaneous symmetry-breaking and ’t Hooft anomalies, a new order parameter for confinement which works in the presence of fundamental quarks, a Hamiltonian lattice formulation of gauge theories with arbitrary discrete gauge groups, an extension of the Coleman–Mandula theorem to discrete symmetries, and an improved explanation of the decay $$\pi ^0\rightarrow \gamma \gamma $$ π 0 → γ γ in the standard model of particle physics. …”
Get full text
Article -
75
Krylov complexity in quantum field theory, and beyond
Published 2024“…We study Krylov complexity in various models of quantum field theory: free massive bosons and fermions on flat space and on spheres, holographic models, and lattice models with a UV-cutoff. …”
Get full text
Article -
76
Entanglement and Chaos in Quantum Field Theory and Gravity
Published 2024“…First we study quantum scars, a phenomenon previously studied in chaotic, few-body quantum systems, and we extend the analysis from the case of few-body quantum mechanics to the case of quantum field theory. Next we turn to the study of multipartite entanglement. …”
Get full text
Thesis -
77
-
78
-
79
Interpolating actions for supersymmetric quantum field theory.
Published 1989“…A new perturbative scheme has recently been applied to a supersymmetric quantum-field-theory model in which no conventional means for doing analytic calculations existed. …”
Journal article -
80
Topics in quantum gravity and quantum field theory
Published 2021Subjects: “…Quantum field theory…”
Thesis