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Time-dependent Perturbation Theory in Quantum Mechanics | C.Y. Chen
; | Date: |
14 Nov 1999 | Subject: | quant-ph | Abstract: | After revealing difficulties of the standard time-dependent perturbation theory in quantum mechanics mainly from the viewpoint of practical calculation, we propose a new quasi-canonical perturbation theory. In the new theory, the dynamics of physical observables, instead of that of coefficients of wave-function expansion, is formulated so that the gauge-invariance and correspondence principles are observed naturally. | Source: | arXiv, quant-ph/9911064 | Services: | Forum | Review | PDF | Favorites |
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