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

physics, the history of quantum field theory starts with its creation by Paul Dirac, when he attempted to quantize the electromagnetic field in the late...

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

In physics, a unified field theory (UFT) is a type of field theory that allows all that is usually thought of as fundamental forces and elementary particles...

effective field theory is a type of approximation, or effective theory, for an underlying physical theory, such as a quantum field theory or a statistical...

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...

Pioneers of gravitational theory In physics, theories of gravitation postulate mechanisms of interaction governing the movements of bodies with mass. There...

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 of light....

algebra of local conformal transformations, and conformal field theories can sometimes be exactly solved or classified. Conformal field theory has important...

The history of string theory spans several decades of intense research including two superstring revolutions. Through the combined efforts of many researchers...

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

effects of quantization; theories that incorporate quantum mechanics are called quantum field theories. In most contexts, 'classical field theory' is specifically...

String field theory (SFT) is a formalism in string theory in which the dynamics of relativistic strings is reformulated in the language of quantum field theory...

class field theory (CFT) is the fundamental branch of algebraic number theory whose goal is to describe all the abelian Galois extensions of local and...

The history of group theory, a mathematical domain studying groups in their various forms, has evolved in various parallel threads. There are three historical...

The history of electromagnetic theory begins with ancient measures to understand atmospheric electricity, in particular lightning. People then had little...

is a list of quantum field theories. The first few sections are organized according to their matter content, that is, the types of fields appearing in...

Atomic theory is the scientific theory that matter is composed of particles called atoms. The definition of the word "atom" has changed over the years...

vector psychology, field theory is a psychological theory that examines patterns of interaction between the individual and the total field, or environment...

field theory, correlation functions, often referred to as correlators or Green's functions, are vacuum expectation values of time-ordered products of...

comprehensive theory of the nature of early attachments, Bowlby explored a range of fields including evolution by natural selection, object relations theory (psychoanalysis)...

In quantum field theory, partition functions are generating functionals for correlation functions, making them key objects of study in the path integral...

real numbers. A field is thus a fundamental algebraic structure which is widely used in algebra, number theory, and many other areas of mathematics. The...

A theory of capitalism describes the essential features of capitalism and how it functions. The history of various such theories is the subject of this...

Sitter/conformal field theory correspondence (AdS/CFT correspondence), which relates string theory to another type of physical theory called a quantum field theory. One...

Lagrangian field theory. It also has applications in quantum field theory. The Hamiltonian for a system of discrete particles is a function of their generalized...

In sociology, field theory examines how individuals construct social fields, and how they are affected by such fields. Social fields are environments in...

The theory of relativity usually encompasses two interrelated physics theories by Albert Einstein: special relativity and general relativity, proposed...

Sitter/conformal field theory correspondence (frequently abbreviated as AdS/CFT) is a conjectured relationship between two kinds of physical theories. On one side...

fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical...