• mathematical physics, the gamma matrices,   { γ 0 , γ 1 , γ 2 , γ 3 }   , {\displaystyle \ \left\{\gamma ^{0},\gamma ^{1},\gamma ^{2},\gamma ^{3}\right\}\ ,} also...
    61 KB (7,307 words) - 07:05, 17 June 2025
  • mathematical physics, higher-dimensional gamma matrices generalize to arbitrary dimension the four-dimensional Gamma matrices of Dirac, which are a mainstay of...
    25 KB (3,674 words) - 07:40, 17 June 2025
  • Thumbnail for Pauli matrices
    In mathematical physics and mathematics, the Pauli matrices are a set of three 2 × 2 complex matrices that are traceless, Hermitian, involutory and unitary...
    45 KB (7,495 words) - 12:51, 23 May 2025
  • Thumbnail for Spinor
    by gamma matrices, matrices that satisfy a set of canonical anti-commutation relations. The spinors are the column vectors on which these matrices act...
    72 KB (9,924 words) - 15:56, 26 May 2025
  • 4-gradient. In practice one often writes the gamma matrices in terms of 2 × 2 sub-matrices taken from the Pauli matrices and the 2 × 2 identity matrix. Explicitly...
    79 KB (13,114 words) - 04:35, 5 July 2025
  • Let γμ denote a set of four 4-dimensional gamma matrices, here called the Dirac matrices. The Dirac matrices satisfy where { , } is the anticommutator...
    28 KB (3,655 words) - 11:14, 10 January 2025
  • {\stackrel {\mathrm {def} }{=}}\ \gamma ^{0}A_{0}+\gamma ^{1}A_{1}+\gamma ^{2}A_{2}+\gamma ^{3}A_{3}} where γ are the gamma matrices. Using the Einstein summation...
    5 KB (945 words) - 01:33, 6 April 2025
  • {I} \end{bmatrix}}} These two 4×4 matrices are related to the Dirac gamma matrices. Note that 0 and I are 2×2 matrices here. The next step is to look for...
    26 KB (4,745 words) - 13:01, 9 June 2025
  • article. Rotation matrices are square matrices, with real entries. More specifically, they can be characterized as orthogonal matrices with determinant...
    102 KB (15,793 words) - 07:31, 30 June 2025
  • of the gamma matrices, including the Dirac, Weyl, and Majorana representations, that C γ μ = − γ μ T C {\displaystyle \,C\,\gamma _{\mu }=-\gamma _{\mu...
    47 KB (8,807 words) - 17:38, 12 May 2025
  • the gamma matrices, which represent the generators of the algebra. The gamma matrices are a set of four 4 × 4 {\displaystyle 4\times 4} matrices { γ μ...
    15 KB (2,342 words) - 23:31, 7 April 2025
  • Thumbnail for Four-vector
    the subspace spanned by the gamma matrices inside the Dirac algebra. The Lorentz group may be represented by 4×4 matrices Λ. The action of a Lorentz transformation...
    47 KB (8,365 words) - 14:48, 25 February 2025
  • for higher-dimensional gamma matrices, with an explicit construction for Weyl spinors given in the article on Weyl–Brauer matrices. Note, however, spinors...
    35 KB (5,729 words) - 09:58, 24 March 2025
  • The Gell-Mann matrices, developed by Murray Gell-Mann, are a set of eight linearly independent 3×3 traceless Hermitian matrices used in the study of the...
    10 KB (1,404 words) - 21:04, 14 April 2025
  • Thumbnail for Matrix (mathematics)
    {\displaystyle 2\times 3} ⁠. In linear algebra, matrices are used as linear maps. In geometry, matrices are used for geometric transformations (for example...
    128 KB (15,699 words) - 03:26, 7 July 2025
  • Thumbnail for List of named matrices
    article lists some important classes of matrices used in mathematics, science and engineering. A matrix (plural matrices, or less commonly matrixes) is a rectangular...
    32 KB (1,336 words) - 21:01, 14 April 2025
  • Thumbnail for Hadamard matrix
    matrices arise in the study of operator algebras and the theory of quantum computation. Butson-type Hadamard matrices are complex Hadamard matrices in...
    26 KB (3,716 words) - 20:33, 18 May 2025
  • physics, 4×4 complex matrices or 8×8 real matrices are needed. Weyl–Brauer matrices Higher-dimensional gamma matrices Clifford module bundle Atiyah, Michael;...
    4 KB (492 words) - 21:04, 25 April 2025
  • Thumbnail for Gamma function
    written as ln(x) or loge(x). In mathematics, the gamma function (represented by Γ, capital Greek letter gamma) is the most common extension of the factorial...
    90 KB (13,547 words) - 17:59, 24 June 2025
  • }^{ab}\gamma _{ab}\psi _{\nu },} where γ a b = γ [ a γ b ] {\displaystyle \gamma _{ab}=\gamma _{[a}\gamma _{b]}} . The regular gamma matrices satisfying...
    24 KB (3,575 words) - 11:44, 24 May 2025
  • {\displaystyle \left(i\gamma ^{\mu }\partial _{\mu }-m\right)\psi (x)=0.\,} where γ μ {\displaystyle \gamma ^{\mu }} are gamma matrices and m {\displaystyle...
    10 KB (1,698 words) - 21:42, 22 February 2025
  • for contracting the vector with the Dirac gamma matrices, so A / = γ μ A μ {\displaystyle A\!\!\!/=\gamma ^{\mu }A_{\mu }} ; what one gains is not only...
    66 KB (7,005 words) - 23:13, 8 July 2025
  • Thumbnail for Representation theory of the Poincaré group
    transform under Lorentz transformations generated by the gamma matrices ( γ μ {\displaystyle \gamma _{\mu }} ). It can be shown that the scalar product ⟨...
    5 KB (586 words) - 08:41, 27 June 2025
  • ★. Consider the gamma matrices in the examples given above. The formula defining the fifth gamma matrix ( γ 5 {\displaystyle \gamma _{5}} ) shows that...
    42 KB (5,316 words) - 02:52, 26 February 2025
  • Thumbnail for Γ-Hydroxybutyric acid
    γ-Hydroxybutyric acid, also known as gamma-hydroxybutyric acid, GHB, or 4-hydroxybutanoic acid, is a naturally occurring neurotransmitter and a depressant...
    90 KB (9,456 words) - 14:07, 7 July 2025
  • Thumbnail for Gamma distribution
    matrix gamma distribution and the Wishart distribution are multivariate generalizations of the gamma distribution (samples are positive-definite matrices rather...
    66 KB (9,100 words) - 06:11, 7 July 2025
  • matrices γ0, ..., γ3, called Dirac matrices, which have the property that γ i γ j + γ j γ i = 2 η i j , {\displaystyle \gamma _{i}\gamma _{j}+\gamma _{j}\gamma...
    65 KB (9,287 words) - 07:33, 12 May 2025
  • positive-definite random matrices (i.e. matrix-valued random variables). These distributions are of great importance in the estimation of covariance matrices in multivariate...
    27 KB (4,255 words) - 06:33, 6 July 2025
  • mathematically as problems concerning large, random matrices. In nuclear physics, random matrices were introduced by Eugene Wigner to model the nuclei...
    53 KB (7,569 words) - 05:43, 8 July 2025
  • {\left({\tfrac {1}{8}}\omega _{\mu \nu }[\gamma _{\mu },\gamma _{\nu }]\right)}\psi ,} where γν are gamma matrices, and ωμν is an antisymmetric 4 × 4 matrix...
    72 KB (10,585 words) - 18:26, 3 July 2025