• Thumbnail for Effective field theory
    physics, an 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...
    12 KB (1,489 words) - 20:06, 25 June 2024
  • example, effective field theory is a method used to describe physical theories when there is a hierarchy of scales. Effective field theories in physics...
    2 KB (253 words) - 20:09, 1 February 2023
  • scalar quantum field that has been observed in nature is the Higgs field. However, scalar quantum fields feature in the effective field theory descriptions...
    29 KB (4,903 words) - 18:58, 1 August 2024
  • Thumbnail for Quantum field theory
    In theoretical physics, quantum field theory (QFT) is a theoretical framework that combines classical field theory, special relativity, and quantum mechanics...
    106 KB (14,897 words) - 17:13, 18 August 2024
  • Thumbnail for Gauge theory
    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...
    47 KB (6,760 words) - 18:04, 26 August 2024
  • Thumbnail for Effective action
    In quantum field theory, the quantum effective action is a modified expression for the classical action taking into account quantum corrections while...
    14 KB (2,101 words) - 13:33, 1 May 2024
  • Thumbnail for Quantum gravity
    (1995). "Introduction to the Effective Field Theory Description of Gravity". In Cornet, Fernando (ed.). Effective Theories: Proceedings of the Advanced...
    54 KB (5,976 words) - 22:16, 1 September 2024
  • Chiral perturbation theory (ChPT) is an effective field theory constructed with a Lagrangian consistent with the (approximate) chiral symmetry of quantum...
    10 KB (1,506 words) - 18:11, 25 July 2023
  • Thumbnail for Yang–Mills theory
    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...
    28 KB (4,217 words) - 05:47, 2 September 2024
  • Thumbnail for Renormalization
    Renormalization (category Quantum field theory)
    Renormalization is a collection of techniques in quantum field theory, statistical field theory, and the theory of self-similar geometric structures, that are used...
    57 KB (7,749 words) - 11:45, 10 September 2024