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- W2908591841 abstract "There is no known exact expression for the propagator of a non-relativistic particle colliding with a hard sphere. De Prunel'e (2008 {it J.~Phys.~A:~Math.~Theor.} {bf 41} 255305) derived a partial wave expansion of the propagator and compared it against some known approximations, including the semiclassical Van Vleck-Gutzwiller (VG) propagator; the VG propagator was evaluated entirely numerically. Here we point out that the VG propagator for the particle-sphere problem admits an analytic expression in terms of elementary functions." @default.
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- W2908591841 date "2019-01-13" @default.
- W2908591841 modified "2023-09-27" @default.
- W2908591841 title "Comment on The hard sphere quantum propagator: exact results via partial wave analysis''" @default.
- W2908591841 hasPublicationYear "2019" @default.
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