Field Theory (disambiguation)

Field Theory may refer to:

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  Quantum field theory

  A framework in theoretical physics describing particles as excitations of underlying quantum fields (e.g., used in particle physics).

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  Classical field theory

  The study of fields in classical physics (such as electromagnetic fields and gravitational fields) governed by differential equations.

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  Gauge field theory

  A type of field theory where the field dynamics are invariant under local symmetry transformations, forming the basis of the Standard Model.