Anderson Orthogonality Theorem Overlap Integral between Two Ground States with Differnt Centers of Local Potential
Abstract
The overlap integral between two ground states of the conduction electron system with a local potential at each different site is studied. The overlap integral is obtained for the system with 3 nonzero partial wave components of scattering, and this result is extended to the general case with n nonzero phase shifts. It is shown that the calculation of the exponent of the overlap integral can be reduced to solving an eigenvalue problem.
 Publication:

Progress of Theoretical Physics
 Pub Date:
 September 1987
 DOI:
 10.1143/PTP.78.583
 Bibcode:
 1987PThPh..78..583K