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Questions related to the discernibility of many-body systems, its philosophical implications and its mathematical description.

2
votes
There's a couple of deeply-wrong claims in your question The two-electron wavefunction of the ground state of helium is $$ \psi(r_1,r_2)=\phi_{1s}(r_1)\phi_{1s}(r_2)\otimes (|\uparrow_1\downarr …
answered Jan 20 by Emilio Pisanty
10
votes
Your claim [any arbitrary] wavefunction of an electron $\psi(\vec{r},s)$ can always be written as $$\psi(\vec{r},s)=\phi(\vec{r})\zeta_{s,m_s} \tag 1$$ where $\phi(\vec{r})$ is the space part and …
answered Mar 25 by Emilio Pisanty