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Definition 2024

decoherence

decoherence

English

Noun

decoherence ‎(countable and uncountable, plural decoherences)

  1. (physics) The process by which a quantum system interacts with its environment in such a way that no interference between states of the system can be observed.
  2. (engineering, dated) The normal condition of sensitiveness in a coherer.

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Translations

Etymology

First attested 1902 (OED), in the context of electrical engineering, in the sense of the resetting of a coherer. Decoherence is the verbal noun, standing besides decohesion, derived from decohere (also attested from 1902), the de- negative of cohere (17th century).

Pronunciation

  • (UK) IPA(key): /diːkəʊˈhɪəɹəns/

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