• Thumbnail for Proca action
    equation called the Proca equation. The Proca action and equation are named after Romanian physicist Alexandru Proca. The Proca equation is involved...
    4 KB (736 words) - 23:37, 5 February 2024
  • Thumbnail for Alexandru Proca
    Alexandru Proca (16 October 1897 – 13 December 1955) was a Romanian physicist who studied and worked in France. He developed the vector meson theory of...
    12 KB (1,449 words) - 02:25, 23 February 2024
  • Thumbnail for Effective action
    introduced by Bryce DeWitt in 1963 and independently by Giovanni Jona-Lasinio in 1964. The article describes the effective action for a single scalar...
    14 KB (2,101 words) - 13:33, 1 May 2024
  • nonlinear σ-model. Gauge-fixing ϕ = 0 {\displaystyle \phi =0} , yields the Proca action. This explains why, unlike the case for non-abelian vector fields, quantum...
    5 KB (690 words) - 21:52, 19 May 2023
  • Thumbnail for Lattice gauge theory
    action remains unchanged. There are many possible Wilson actions, depending on which Wilson loops are used in the action. The simplest Wilson action uses...
    12 KB (1,505 words) - 23:39, 12 June 2024
  • Thumbnail for Louis de Broglie
    cyclic integral of action. In the second part of his 1924 thesis, de Broglie used the equivalence of the mechanical principle of least action with Fermat's...
    35 KB (3,956 words) - 19:48, 4 October 2024
  • Thumbnail for Second quantization
    Second quantization (category CS1 German-language sources (de))
    The boson creation (annihilation) operator is a linear operator, whose action on a N-particle first-quantized wave function Ψ {\displaystyle \Psi } is...
    34 KB (6,449 words) - 04:20, 22 August 2024
  • Thumbnail for Dirac equation in curved spacetime
    }-m)\Psi } is integrated against the volume form to obtain the Dirac action Dirac action on curved spacetime I Dirac = ∫ M d 4 x − g Ψ ¯ ( i γ μ D μ − m )...
    13 KB (2,309 words) - 07:45, 30 March 2024
  • Thumbnail for Mass gap
    Wightman Axioms Equations Dirac equation Klein–Gordon equation Proca equations Wheeler–DeWitt equation Bargmann–Wigner equations Schwinger-Dyson equation...
    7 KB (1,114 words) - 01:30, 26 July 2024
  • Thumbnail for Yang–Mills theory
    Wightman Axioms Equations Dirac equation Klein–Gordon equation Proca equations Wheeler–DeWitt equation Bargmann–Wigner equations Schwinger-Dyson equation...
    28 KB (4,217 words) - 05:47, 2 September 2024
  • Thumbnail for One-loop Feynman diagram
    Wightman Axioms Equations Dirac equation Klein–Gordon equation Proca equations Wheeler–DeWitt equation Bargmann–Wigner equations Schwinger-Dyson equation...
    2 KB (227 words) - 03:27, 12 August 2024
  • Thumbnail for Källén–Lehmann spectral representation
    Källén–Lehmann spectral representation (category CS1 German-language sources (de))
    Wightman Axioms Equations Dirac equation Klein–Gordon equation Proca equations Wheeler–DeWitt equation Bargmann–Wigner equations Schwinger-Dyson equation...
    5 KB (878 words) - 06:56, 14 June 2024
  • Thumbnail for Wick's theorem
    Wightman Axioms Equations Dirac equation Klein–Gordon equation Proca equations Wheeler–DeWitt equation Bargmann–Wigner equations Schwinger-Dyson equation...
    18 KB (3,656 words) - 13:08, 22 July 2024
  • Thumbnail for Wheeler–DeWitt equation
    Wheeler–DeWitt equation for theoretical physics and applied mathematics, is a field equation attributed to John Archibald Wheeler and Bryce DeWitt. The...
    11 KB (1,668 words) - 23:54, 7 September 2024
  • Thumbnail for Weyl equation
    informally sketched as follows. The Weyl equation is invariant under the action of the Lorentz group. This means that, as boosts and rotations are applied...
    28 KB (4,772 words) - 20:55, 20 June 2024
  • Thumbnail for Beta function (physics)
    ; Petermann, A. (1953). "La renormalisation des constants dans la théorie de quanta". Helv. Phys. Acta (in French). 26: 499–520. Srednicki, Mark Allen...
    11 KB (1,628 words) - 10:14, 25 September 2024
  • Thumbnail for Pauli–Lubanski pseudovector
    Lorentz transformation, the last column reserved for translations and the action effected on elements p {\displaystyle p} (column vectors) of momentum space...
    15 KB (2,044 words) - 10:44, 21 September 2024
  • Thumbnail for Gauge theory
    based on the action of the (non-abelian) SU(2) symmetry group on the isospin doublet of protons and neutrons. This is similar to the action of the U(1)...
    47 KB (6,760 words) - 18:04, 26 August 2024
  • Thumbnail for Crossing (physics)
    Wightman Axioms Equations Dirac equation Klein–Gordon equation Proca equations Wheeler–DeWitt equation Bargmann–Wigner equations Schwinger-Dyson equation...
    5 KB (620 words) - 04:48, 31 March 2023
  • Thumbnail for Nonlinear Dirac equation
    its antisymmetric part, the torsion tensor, as a variable in varying the action. In the resulting field equations, the torsion tensor is a homogeneous,...
    11 KB (1,520 words) - 20:40, 27 August 2024
  • Thumbnail for Noether's theorem
    Noether's theorem (category CS1 German-language sources (de))
    tensor in Maxwell, Yang–Mills, and Proca theories obtained using only Noether's theorem" (PDF). Revista Mexicana de Física. 52 (1): 29–36. arXiv:hep-th/0602190...
    66 KB (10,947 words) - 17:29, 20 September 2024
  • Thumbnail for Partition function (quantum field theory)
    -dimensional field theory with a real scalar field ϕ {\displaystyle \phi } and action S [ ϕ ] {\displaystyle S[\phi ]} , the partition function is defined in...
    10 KB (1,664 words) - 20:34, 6 February 2024
  • Thumbnail for MHV amplitudes
    Wightman Axioms Equations Dirac equation Klein–Gordon equation Proca equations Wheeler–DeWitt equation Bargmann–Wigner equations Schwinger-Dyson equation...
    9 KB (1,199 words) - 15:24, 4 February 2024
  • Thumbnail for Hideki Yukawa
    Hideki Yukawa (category CS1 German-language sources (de))
    Wightman Axioms Equations Dirac equation Klein–Gordon equation Proca equations Wheeler–DeWitt equation Bargmann–Wigner equations Schwinger-Dyson equation...
    14 KB (1,292 words) - 22:27, 17 September 2024
  • Thumbnail for Correlation function (quantum field theory)
    ground state of the free theory and S [ ϕ ] {\displaystyle S[\phi ]} is the action. Expanding e i S [ ϕ ] {\displaystyle e^{iS[\phi ]}} using its Taylor series...
    10 KB (1,715 words) - 17:19, 23 April 2024
  • Thumbnail for Lattice QCD
    calculating the action, using field configurations which are chosen according to the distribution function, which depends on the action and the fields...
    14 KB (1,688 words) - 13:27, 18 June 2024
  • Thumbnail for Background field method
    background field method is a useful procedure to calculate the effective action of a quantum field theory by expanding a quantum field around a classical...
    4 KB (763 words) - 23:06, 21 September 2023
  • Thumbnail for Introduction to gauge theory
    Wightman Axioms Equations Dirac equation Klein–Gordon equation Proca equations Wheeler–DeWitt equation Bargmann–Wigner equations Schwinger-Dyson equation...
    31 KB (4,387 words) - 16:57, 4 September 2024
  • Thumbnail for Feynman diagram
    abelian case. The full gauge fixed action is then the Yang Mills action in Feynman gauge with an additional ghost action: S = ∫ Tr ⁡ ∂ μ A ν ∂ μ A ν + f...
    93 KB (16,017 words) - 21:20, 21 September 2024
  • Thumbnail for Free field
    Wightman Axioms Equations Dirac equation Klein–Gordon equation Proca equations Wheeler–DeWitt equation Bargmann–Wigner equations Schwinger-Dyson equation...
    3 KB (461 words) - 21:29, 13 December 2022