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The Hydrogen atom Fine structure

The Hydrogen atom Fine structure

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<strong>The</strong> perturbational treatment of the<br />

relativistic effect<br />

If the Dirac equation is expanded in terms of v 2 /c 2 , one<br />

obtains 3 correction terms:<br />

• the relativistic correction of the kinetic energy<br />

• the Darwin-term (only for l=0)<br />

• the spin-orbit interaction term

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