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Stability of the classical helium atom
Let us forget about quantum mechanics and confine ourselves to classical mechanics.
The Hamiltonian for a classical helium atom would be
$$ H = \frac{p_1^2 + p_2^2}{2m } - \frac{Z}{r_1} - \frac{Z}{...
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Story about a mathematician, a dinner party, and the three-body problem
I remember dimly hearing a story, coincidentally also at a dinner party, and I was trying recently to track the details down with no success. I was hoping someone here might have also heard this story ...
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