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Wave-packet propagation in momentum space: Calculation of sharp-energyS-matrix elements

1992
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Physical Review A. Atomic, Molecular, and Optical Physics
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This paper examines momentum-space methods as a means of implementing a scattering-theoretic, long-time lemma on the extraction of sharp-energy S-matrix elements from a wave-packet description of collisions. In order to concentrate on the momentum space and computational aspects, the collision system studied is that of two particles; each has the mass of a nucleon. The formulation of the problem in momentum space avoids any spreading of the packets and allows for a straightforward analysis,

doi:10.1103/physreva.46.2304
pmid:9908387
fatcat:knudgrmjlzehpeltpgbtdqsfeq