Zero-range interaction in arbitrary dimensions and in the presence of external forces |
| |
Authors: | K. Krajewska,K. Wó dkiewicz |
| |
Affiliation: | Institute of Theoretical Physics, Faculty of Physics, University of Warsaw, Ho?a 69, 00-681 Warszawa, Poland |
| |
Abstract: | We analyze zero-range interactions in arbitrary dimensions and in the presence of external forces in terms of non-local separable potentials. We show that in one-, two- and three-dimensional cases this approach is equivalent to the standard method with a renormalization operator. Our analysis indicates that the method of a projection operator is also useful for studying processes occurring under the influence of additional forces. As an example we present exact solutions for a particle interacting with a static electric field. |
| |
Keywords: | Zero-range potential Separable potential Regularization Renormalization Detachment Resonances |
本文献已被 ScienceDirect 等数据库收录! |