Adiabaticity

Adiabaticity is defined as

<math>\xi_{kn}\equiv \frac{Z_1 Z_2 \sqrt{A_1}}{6.34977} \left( (E_p - s E_k)^{-1/2} - (E_p - s E_n)^{-1/2}\right)</math>



where

<math>s = 1 + A_1/A_2 </math>.

There are [[adiabaticity_limit | limits]] to the adiabaticities (more accurately, to the [[adiabaticity product | adiabaticity products]]) of single-step excitations for which Gosia will yield accurate results.

==Notes==

<references/>