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Transmittance for wave-packet scattering
Physical Review A, 1992Different expressions for the transmittance in wave-packet scattering in one dimension are examined. Special attention is paid to the difficulties when the initial packet ρ(0) has negative momentum components. A general formula is provided for this case, and the domain of applicability of a simple approximate expression is indicated.
, Muga, , Brouard, , Snider
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International Journal of Mathematical Education in Science and Technology, 1972
Summary It is argued that quantum mechanics is a better theory than classical mechanics because it gives all the classical results and in addition explains new phenomena that classical mechanics cannot convincingly explain. However, little time seems to be spent in introductory courses on quantum mechanics to show that one can indeed obtain even the ...
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Summary It is argued that quantum mechanics is a better theory than classical mechanics because it gives all the classical results and in addition explains new phenomena that classical mechanics cannot convincingly explain. However, little time seems to be spent in introductory courses on quantum mechanics to show that one can indeed obtain even the ...
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The Journal of the Acoustical Society of America, 1994
Various decomposition techniques have been employed in signal processing for exploiting and highlighting the characteristics of a given signal. The approach discussed in this paper, conceived from the observation of wave packets in scattering phenomena, is to examine the natural representation of a signal through the dynamic time and frequency ...
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Various decomposition techniques have been employed in signal processing for exploiting and highlighting the characteristics of a given signal. The approach discussed in this paper, conceived from the observation of wave packets in scattering phenomena, is to examine the natural representation of a signal through the dynamic time and frequency ...
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American Journal of Physics, 1996
The spreading or nonspreading of wave packets in one-dimensional linear and quadratic potentials can readily be determined by solving Ehrenfest’s equations. The results for quadratic potentials can be understood in simple intuitive terms by using quantum distribution functions in phase space which, like classical distributions, rotate clocklike in time
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The spreading or nonspreading of wave packets in one-dimensional linear and quadratic potentials can readily be determined by solving Ehrenfest’s equations. The results for quadratic potentials can be understood in simple intuitive terms by using quantum distribution functions in phase space which, like classical distributions, rotate clocklike in time
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Nondispersive Space–Time Wave Packets Propagating in Dispersive Media
Laser and Photonics Reviews, 2022Hao He, Cheng Guo, Meng Xiao
exaly