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 (Supercomputing facility)
Dirac bracket, a generalization of the Poisson bracket
Dirac constant, a reduced form of the Planck constant
Dirac fermion, a fermion which is not its own antiparticle
Dirac equation, a relativistic quantum mechanical wave equation
Dirac notation, a standard notation for describing quantum states
Dirac equation in particle physics
Dirac large numbers hypothesis relating the size scale of the universe to the scales between different physical forces
Dirac sea

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'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 delta function

5997 Dirac, a main-belt asteroid
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
Dirac measure, a mathematical measure that is a probability measure
Dirac observables, see loop quantum gravity
Dirac (dress), a Somali dress
Dirac Medal