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|Type:||Artigo de periódico|
|Title:||Limitations on the principle of stationary phase when it is applied to tunneling analysis|
|Abstract:||Using a recently developed procedure-multiple wave packet decomposition-here we study the phase time formulation for tunneling or reflecting particles colliding with a potential barrier. To partially overcome the analytical difficulties which frequently arise when the stationary phase method is employed for deriving phase (tunneling) time expressions, we present a theoretical exercise involving a symmetrical collision between two identical wave packets and an one-dimensional rectangular potential barrier. Summing the amplitudes of the reflected and transmitted waves-using a method we call multiple peak decomposition-is shown to allow reconstruction of the scattered wave packets in a way which allows the stationary phase principle to be recovered.|
|Editor:||Amer Physical Soc|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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