Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1867143 | Physics Letters A | 2011 | 5 Pages |
Abstract
⺠We derive a new path-integral representation for the T-matrix in quantum scattering from a potential. ⺠The method is based on a technique used by Barbashov and collaborators in Quantum Field Theory. ⺠Unlike previous approaches no unphysical degrees of freedom in the path integral are needed. ⺠The new representation is used for a variational approximation of the T-matrix at high energies. ⺠A new expression for the scattering length at low energy is derived.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
J. Carron, R. Rosenfelder,