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Hi Larry
Thanks for sharing this.
I was wondering what role you see, in many-electron atoms, for such things as electron–electron interactions, shielding and penetration, correlation, and relativistic effects.
I ask because in La the 5d and 4f levels are close, and their ordering, as I understand it, is usually determined chiefly by the balance of such factors.
Even if quantum foam belongs to a higher-energy regime, that doesn’t necessarily mean it makes a large contribution to atomic level ordering.
Indeed, NASA says that some quantum-foam models would blur light from distant quasars, but no such degradation has been seen, so the observable consequences of those models must be extremely small or absent at accessible scales.
On that basis, I’d be inclined to suppose that La’s 5d/4f ordering is still governed chiefly by the usual many-electron and relativistic atomic-structure factors.
best regards, René
On 10 Mar 2026, at 4:27 AM, Larry T. <ora...@gmail.com> wrote:
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