Born–Oppenheimer approximation

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Science and technology

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What Wikipedia says

In quantum chemistry and molecular physics, the Born–Oppenheimer (BO) approximation is the assumption that the wave functions of atomic nucleus and electrons in a molecule can be treated separately, based on the fact that the nucleus are much heavier than the electrons.

Excerpt from the Wikipedia article “Born–Oppenheimer approximation”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: John Riemann Soong at en.wikipedia, Public domain, via Wikimedia Commons.