Dirac (disambiguation)

Paul Dirac (1902–1984) was a Swiss-British theoretical physicist, Nobel laureate, and a founder of the field of quantum physics.

Dirac may also refer to:

Physics

DiRAC, Distributed Research using Advanced Computing, a supercomputing facility
Dirac bracket, a generalization of the Poisson bracket
Dirac constant, a historical name for the reduced Planck constant
Dirac equation, a relativistic quantum mechanical wave equation
Dirac fermion, a fermion which is not its own antiparticle
Dirac large numbers hypothesis, relating the size scale of the universe to the scales between different physical forces
Dirac notation, a standard notation for describing quantum states
Dirac observables
Dirac sea

Dirac measure, a mathematical measure that is a probability measure
Dirac's theorem on chordal graphs, the characterization of chordal graphs as graphs in which all minimal separators are cliques
Dirac's theorem on cycles in $k$ -connected graphs, the result that for every set of $k$ vertices in a $k$ -vertex-connected graph there exists a cycle that passes through all the vertices in the set
Dirac's theorem on Hamiltonian cycles, the statement that an $n$ -vertex graph in which each vertex has degree at least $n /2$ must have a Hamiltonian cycle
Dirac delta function

Dirac (dress), a Somali dress
Dirac (software), a relativistic quantum chemistry program
Dirac (video compression format), an open digital video codec developed by BBC Research
Dirac, Charente, a commune of the Charente département, in France
5997 Dirac, a main-belt asteroid
Gabriel Andrew Dirac (1925–1984), graph theorist, Paul Dirac's stepson