The Anderson orthogonality theorem is a theorem in physics by the physicist P. W. Anderson.
It relates to the introduction of a magnetic impurity in a metal. When a magnetic impurity is introduced into a metal, the conduction electrons will tend to screen the potential that the impurity creates. The N-electron ground state for the system when , which corresponds to the absence of the impurity and , which corresponds to the introduction of the impurity are orthogonal in the thermodynamic limit .
that the impurity creates. The N-electron 
, which corresponds to the absence of the impurity and 
, which corresponds to the introduction of the impurity are 
.
References
- P. W. Anderson (1967). "Infrared Catastrophe in Fermi Gases with Local Scattering Potentials". Physical Review Letters. 18 (24): 1049. Bibcode:1967PhRvL..18.1049A. doi:10.1103/PhysRevLett.18.1049.
- P. W. Anderson (1967). "Ground State of a Magnetic Impurity in a Metal". Physical Review. 164 (2): 352. Bibcode:1967PhRv..164..352A. doi:10.1103/PhysRev.164.352.
 | This condensed matter physics-related article is a stub. You can help Misplaced Pages by expanding it. |