wavefunction collapse

== English == === Noun === wavefunction collapse (countable and uncountable, plural wavefunction collapses) (quantum mechanics) The phenomenon in which a wavefunction — initially in a superposition of several different possible eigenstates — appears to reduce to a single one of those states after interaction with an observer: the reduction of the physical possibilities into a single possibility as seen by an observer. ==== Synonyms ==== state vector collapse ==== Translations ==== === See also === measurement problem, quantum measurement problem uncertainty principle