A classical field theory is a physical theory that predicts how one or more fields in physics interact with matter through field equations, without considering...

physics are described in the article on classical unified field theories. The goal of a unified field theory has led to a great deal of progress for future...

classical fields, such as the gravitational field in Newton's theory of gravity or the electrostatic field in classical electromagnetism, is inversely proportional...

Lagrangian field theory is a formalism in classical field theory. It is the field-theoretic analogue of Lagrangian mechanics. Lagrangian mechanics is used...

excitations of these fields. To differentiale from quantum field theory, previously developed field theories were called classical field theories. The first record...

nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics. In particular...

In theoretical physics, quantum field theory (QFT) is a theoretical framework that combines classical field theory, special relativity, and quantum mechanics...

employs fields in the physical sense, consisting of three types: Classical field theory, the theory and dynamics of classical fields Quantum field theory, the...

paradigm, which includes classical mechanics and relativity. Likewise, classical field theories, such as general relativity and classical electromagnetism, are...

In mathematical physics, covariant classical field theory represents classical fields by sections of fiber bundles, and their dynamics is phrased in the...

currents using an extension of the classical Newtonian model. It is, therefore, a classical field theory. The theory provides a description of electromagnetic...

Hamiltonian field theory is the field-theoretic analogue to classical Hamiltonian mechanics. It is a formalism in classical field theory alongside Lagrangian...

referred to as "the field equation". The topic broadly splits into equations of classical field theory and quantum field theory. Classical field equations describe...

In physics, a gauge theory is a type of field theory in which the Lagrangian, and hence the dynamics of the system itself, do not change under local transformations...

elementary particles. At the same time, classical gauge theory admits comprehensive geometric formulation where gauge fields are represented by connections on...

of six core courses devoted to: classical mechanics, quantum mechanics, special relativity and classical field theory, general relativity, cosmology,...

Algebraic quantum field theory (AQFT) is an application to local quantum physics of C*-algebra theory. Also referred to as the Haag–Kastler axiomatic...

self-similarity. In classical field theory, scale invariance most commonly applies to the invariance of a whole theory under dilatations. Such theories typically...

amounts to a representation of the double cover of the group.) In a classical field theory, the physical states are sections of a Poincaré-equivariant vector...

ISBN 978-0-486-65067-8. Synge, J. L. (1960). "Classical dynamics". In Flügge, S. (ed.). Principles of Classical Mechanics and Field Theory / Prinzipien der Klassischen...

physics, scalar field theory can refer to a relativistically invariant classical or quantum theory of scalar fields. A scalar field is invariant under...

originally for classical mechanics, Hamilton's principle also applies to classical fields such as the electromagnetic and gravitational fields, and plays...

magnetic field and to its direction of motion. The electromagnetic field is described by classical electrodynamics, an example of a classical field theory. This...

solutions to the equations of motion for a classical field theory, particles known as instantons. Gauge theory has found uses in constructing new invariants...

classical field configuration of the second-quantized theory is given by a wave function in the original theory. In the case of string field theory,...

procedure for quantizing a classical theory, while attempting to preserve the formal structure, such as symmetries, of the classical theory to the greatest extent...

field theory in curved spacetime (QFTCS) is an extension of quantum field theory from Minkowski spacetime to a general curved spacetime. This theory uses...

In gauge theory and mathematical physics, a topological quantum field theory (or topological field theory or TQFT) is a quantum field theory which computes...

there are theories which attempt to explain gravity and other forces at the same time; these are known as classical unified field theories. Finally, the...

physics: Yang–Mills theory and the mass gap. Quantum particles described by the theory have mass but the classical waves of the field travel at the speed...