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关于量子塌缩（quantum collapse），大家是怎么理解的，现在最新的研究是怎样的啊？ 已有6人参与
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In quantum mechanics, wave function collapse (also called collapse of the state vector or reduction of the wave packet) is the phenomenon in which a wave function—initially in a superposition of several different possible eigenstates—appears to reduce to a single one of those states after interaction with an observer. In simplified terms, it is the reduction of the physical possibilities into a single possibility as seen by an observer. It is one of two processes by which quantum systems evolve in time, according to the laws of quantum mechanics as presented by John von Neumann.[1] The reality of wave function collapse has always been debatable, i.e., whether it is a fundamental physical phenomenon in its own right or just an epiphenomenon of another process, such as quantum decoherence.[2] In recent decades the quantum decoherence view has gained popularity.[citation needed] Collapse may be understood as an update in a probabilistic model, given the observed result. |
2楼2011-10-04 09:34:21