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Ehrenfest's theorem |
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Ehrenfest's theorem [′er·ən‚fests ‚thir·əm] (quantum mechanics) The theorem that a quantum-mechanical wave packet obeys the equations of motion of the corresponding classical particle when the position, momentum, and force acting on the particle are replaced by the expectation values of these quantities. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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