Continuum Distorted Wave Methods in Ion—Atom Collisions
作者： Derrick S.F. Crothers , Louis J. Dubé
DOI: 10.1016/S1049-250X(08)60177-9
关键词: Coulomb 、 Boundary value problem 、 Physics 、 Ansatz 、 Ion 、 Gauge theory 、 Theoretical physics 、 Classical mechanics 、 Galilean invariance 、 Wave function 、 Impact parameter
摘要: Publisher Summary This chapter discusses the continuum distorted wave method in both time-dependent and time-independent form presents clarification of its physical interpretation. An extension (CDW) Ansatz has been developed to a multistate variational close coupling theory that removes normalization difficulties encountered standard CDW approximation. In addition, it shows new formalism possess desirable properties Galilean invariance, gauge flux conservation and, above all, absence divergences. last point seen emerge natural essential way from use functions satisfy correct Coulomb asymptotic boundary conditions. The is understood most easily within impact parameter treatment, which indeed was format originally used by Cheshire (1964) inaugural presentation. By contrast, Oppenheimer–Brinkman–Kramers (OBK) strong-potential Born (SPB) theories are obliged resort off shell effects futile attempt compensate for failure
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