Dirac (disambiguation)
Paul Dirac (1902–1984) was a Swiss-British theoretical physicist, Nobel laureate, and a founder of the field of quantum physics.
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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
Mathematics
- 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
Other uses
- 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
See also
- Dirac delta function, a generalized mathematical function
- Gabriel Andrew Dirac (1925–1984), graph theorist, Paul Dirac's stepson
- Dirak, former name of the town Karnut, Armenia
- Fermi–Dirac (disambiguation)
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