Anderson orthogonality theorem

Template:Short description 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 $V(r)$ that the impurity creates. The N-electron ground state for the system when $V(r)=0$, which corresponds to the absence of the impurity and $V(r)\ne 0$, which corresponds to the introduction of the impurity are orthogonal in the thermodynamic limit $N\to \mathrm{\infty }$.

References

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