Associations to the word «Dirac»

DIRAC, proper noun. A surname of French derivation.

DIRAC COMB, noun. (math) A periodic tempered distribution constructed from Dirac delta functions for some given period. It allows both continuous and discrete phenomena to be represented in a single framework.

DIRAC COMBS, noun. Plural of Dirac comb

DIRAC CONSTANT, noun. (physics) Planck's constant divided by 2π, symbolized ħ.

DIRAC DELTA, noun. (mathematics) A function-like symbol denoted as δ, with the property \(\int f(t)\delta(x-t) \mathrm d t = f(x)\), informally understood as a function with an infinite value at 0 and zero elsewhere, and formally as a distribution or a measure.

DIRAC DELTA FUNCTION, noun. (mathematics) A function of one real argument, whose value is zero when the argument is nonzero, and whose integral is one over any interval that includes zero.

DIRAC EQUATION, noun. (physics) A relativistic wave equation that describes an electron (and similar particles); it predicted the existence of antiparticles

DIRAC FERMION, noun. (physics) Any fermion that is not its own antiparticle

DIRAC FERMIONS, noun. Plural of Dirac fermion

DIRAC STRING, noun. (physics) A hypothetical one-dimensional curve in space, stretching between two Dirac magnetic monopoles with opposite magnetic charges, or from one magnetic monopole out to infinity.

DIRAC STRINGS, noun. Plural of Dirac string

DIRAC, noun. English theoretical physicist who applied relativity theory to quantum mechanics and predicted the existence of antimatter and the positron (1902-1984).