So, when dealing with the Hydrogen molecule (H2) we know each electron is antisymmetric since they're fermions(adsbygoogle = window.adsbygoogle || []).push({});

i.e. [itex]\Psi_\_ = 1/\sqrt(2) * (\Psi_a(r1) * \Psi_b(r2) - \Psi_b(r1) * \Psi_a(r2))[/itex]

and then similarly for the spinor such that the total state, [itex]\Psi\chi[/itex] is antisymmetric

When you deal with atoms, like helim, we can approximate the state of the system as the product of hydrogen wave ([itex]\Psi = \Psi_a *\Psi_b[/itex]). But in doing so, aren't we assuming the electrons are distinct? Why not with that formula for [itex]\Psi_\_[/itex]

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# Calculating the state for Helium

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