Heisenberg uncertainty principle


Heisenberg uncertainty principle
The principle of quantum mechanics that associates the physical properties of particles into pairs, such that both together cannot be measured to within more than a certain degree of accuracy. If A and V form such a pair (called a conjugate pair) then: ΔAΔV > k where k is a constant and ΔA and ΔV are variances in the experimental values for the attributes A and V. The best-known instance of the equation relates the position and momentum of an electron: ΔpΔx > h where h is Planck's constant. This is the Heisenberg uncertainty principle. See also Bell's theorem, Einstein–Podolsky–Rosen thought experiment.

Philosophy dictionary. . 2011.

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  • Heisenberg uncertainty principle — see uncertainty principle. * * * Physics. See uncertainty principle. [1965 70; named after W. K. HEISENBERG] * * * Heisenberg uncertainty principle, Heisenberg s uncertainty principle /hīˈzən bûrg(z) un sûrˈtən ti prinˈsi pl/ noun A more formal… …   Useful english dictionary

  • Heisenberg uncertainty principle — noun Etymology: Werner Heisenberg Date: 1939 uncertainty principle called also Heisenberg s uncertainty principle …   New Collegiate Dictionary

  • Heisenberg uncertainty principle — Physics. See uncertainty principle. [1965 70; named after W. K. HEISENBERG] * * * …   Universalium

  • Heisenberg uncertainty principle — Hei′senberg uncer′tainty prin ciple n. phs uncertainty principle • Etymology: 1965–70; after W. K. Heisenberg …   From formal English to slang

  • Heisenberg uncertainty principle — /ˈhaɪzənbɜg/ (say huyzuhnberg) noun → uncertainty principle. {named after Werner Karl Heisenberg, 1901–76, German physicist} …   Australian English dictionary

  • Heisenberg uncertainty principle — noun The principle that there is an absolute limit on the combined accuracy of certain pairs of simultaneous, related measurements, especially that of the position and momentum of a particle. Originally posited as a problem of measurement, it was …   Wiktionary

  • Heisenberg Uncertainty Principle —    In quantum mechanics, this is a limit on the precision with which the simultaneous position and momentum of a body or particle can be specified. In other words, there is a limit as to how precisely you can determine the location of a particle …   The writer's dictionary of science fiction, fantasy, horror and mythology

  • heisenberg's principle — ˈhīzənˌbərgz noun Usage: usually capitalized H Etymology: after Werner K. Heisenberg b1901 German physicist : uncertainty principle …   Useful english dictionary

  • Heisenberg uncertainty principleHeisenberg's uncertainty principle — Heisenberg uncertainty principle, Heisenberg s uncertainty principle /hīˈzən bûrg(z) un sûrˈtən ti prinˈsi pl/ noun A more formal name for uncertainty principle (see uncertainty under un ) …   Useful english dictionary


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