• Bra–ket notation, also called Dirac notation, is a notation for linear algebra and linear operators on complex vector spaces together with their dual...
    43 KB (6,393 words) - 00:18, 12 August 2024
  • In particle physics, the Dirac equation is a relativistic wave equation derived by British physicist Paul Dirac in 1928. In its free form, or including...
    78 KB (12,973 words) - 08:58, 22 August 2024
  • Thumbnail for Quantum decoherence
    classical phase spaces and Hilbert spaces. A more rigorous derivation in Dirac notation shows how decoherence destroys interference effects and the "quantum...
    64 KB (9,395 words) - 00:37, 9 July 2024
  • Thumbnail for Dirac delta function
    In mathematical analysis, the Dirac delta function (or δ distribution), also known as the unit impulse, is a generalized function on the real numbers...
    94 KB (13,997 words) - 19:44, 27 August 2024
  • Bra–ket notation, or Dirac notation, is an alternative representation of probability distributions in quantum mechanics. Tensor index notation is used...
    9 KB (1,087 words) - 23:04, 26 June 2024
  • Dirac fields in quantum field theory, Richard Feynman invented the convenient Feynman slash notation (less commonly known as the Dirac slash notation)...
    5 KB (944 words) - 07:05, 7 February 2024
  • Thumbnail for Dirac sea
    The Dirac sea is a theoretical model of the electron vacuum as an infinite sea of electrons with negative energy, now called positrons. It was first postulated...
    14 KB (2,014 words) - 21:53, 23 August 2024
  • =0\ } where   ψ   {\displaystyle \ \psi \ } is a Dirac spinor. Switching to Feynman notation, the Dirac equation is   ( i ∂ / − m ) ψ = 0   . {\displaystyle...
    61 KB (7,233 words) - 00:03, 27 August 2024
  • out in a pedagogical fashion, using notations and conventions specific to the standard presentation of the Dirac spinor in textbooks on quantum field...
    23 KB (4,116 words) - 15:18, 2 July 2024
  • Thumbnail for Paul Dirac
    Paul Adrien Maurice Dirac OM FRS (/dɪˈræk/; 8 August 1902 – 20 October 1984) was an English mathematical and theoretical physicist who is considered to...
    88 KB (9,746 words) - 19:03, 26 August 2024