Abstract
A causality problem in the time-dependent scattering of classical waves from point scatterers is pointed out and analyzed. Based on an alternative model, the leading pole approximation of the exact scattering matrix of the square-well potential, transparent expressions for the time- and position-dependent Green function in a disordered medium are derived.
- Received 16 May 2001
DOI:https://doi.org/10.1103/PhysRevLett.87.113902
©2001 American Physical Society