**Field theory** may refer to:

- Field theory (mathematics), the theory of the algebraic concept of field
- Field theory (physics), a physical theory which employs fields in the physical sense, consisting of two types:
- Classical field theory, the theory and dynamics of classical fields.
- Quantum field theory, the theory of quantum mechanical fields.

- Field theory (psychology), a psychological theory which examines patterns of interaction between the individual and his or her environment

### Other articles related to "field theory, theory":

Logarithmic Conformal

... In theoretical physics, a logarithmic conformal

**Field Theory**... In theoretical physics, a logarithmic conformal

**field theory**is a generalization of the concept of (usually two-dimensional) conformal**field theory**in which ...Spin States (d Electrons) - Ligand

... for why the spin states exist according to ligand

**Field Theory**Vs Crystal**Field Theory**... for why the spin states exist according to ligand

**field theory**is essentially the same as the crystal**field theory**explanation ...Autocatalytic Reaction - Phase Transitions

... The derivations typically rely on a mean

... The derivations typically rely on a mean

**field theory**approximation to microscopic dynamical equations ... Mean**field theory**breaks down in the presence of large fluctuations (see Mean**field theory**article for a discussion) ...S-matrix Theory

... S-matrix

... S-matrix

**theory**was a proposal for replacing local quantum**field theory**as the basic principle of elementary particle physics ... In S-matrix**theory**, the S-matrix relates the infinite past to the infinite future in one step, without being decomposable into intermediate steps ... program was very influential in the 1960s, because it was a plausible substitute for quantum**field theory**, which was plagued with the zero interaction phenomenon at strong coupling ...Quantum Scalar

... as the running of the coupling parameter, and

**Field Theory**- Renormalization... as the running of the coupling parameter, and

**theory**of this kind of scale-dependence in quantum**field theory**is described by the renormalization group ... Beta-functions are usually computed in an approximation scheme, most commonly perturbation**theory**, where one assumes that the coupling constant is small ... The beta-function at one loop (the first perturbative contribution) for the**theory**is The fact that the sign in front of the lowest-order term is positive ...### Famous quotes containing the words theory and/or field:

“Psychotherapy—The *theory* that the patient will probably get well anyway, and is certainly a damned ijjit.”

—H.L. (Henry Lewis)

“I would say that deconstruction is affirmation rather than questioning, in a sense which is not positive: I would distinguish between the positive, or positions, and affirmations. I think that deconstruction is affirmative rather than questioning: this affirmation goes through some radical questioning, but it is not questioning in the *field* of analysis.”

—Jacques Derrida (b. 1930)

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