Dirac (disambiguation)

Dirac may refer to:

• people:
  • Paul Dirac (1902–1984), a British theoretical physicist, Nobel laureate, and a founder of the field of quantum physics
  • Gabriel Andrew Dirac (1925–1984), a graph theorist

• in physics:
  • Dirac bracket, a generalization of the Poisson bracket
  • Dirac constant, another name for the reduced Planck constant
  • Dirac delta function, a mathematical function introduced by British theoretical physicist Paul Dirac
  • Dirac equation, a relativistic quantum mechanical wave equation
  • Dirac notation, also called 'Bra-ket notation', the standard notation for describing quantum states
  • Fermi–Dirac integral
  • Fermi–Dirac statistics

• other:
  • Dirac (codec), a video codec
  • 5997 Dirac, a minor planet
  • Dirac, Charente, a commune of the Charente département, in France
  • Dirac (program), a relativistic quantum chemistry program
  • Dirac (library), a commercial programming library for time shifting and pitch shifting
  • Dirac Research AB, a Swedish company specialized in audio signal processing