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Atomic and Condensed Matter
Entangling atoms in a molecule
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[QUOTE="Twigg, post: 6480819, member: 572426"] This is also true but I didn't think to mention it! Especially for the aluminum ion clock. One day, there could even be a thorium-229 clock operating on this principle using the low-lying, super forbidden nuclear transition. Nuke clock! :oldbiggrin: Funnily enough, when I was talking about my conversation with other folks in precision measurement I was actually talking about my conversations with the HfF+ eEDM team. What I said there is exactly why no one has proposed a quantum logic eEDM search to the best of my knowledge. To justify using quantum logic, you'd need a molecule with such a high sensitivity to eEDM that it'd outperform a gas of 1000 HfF+ (I forget the final flux of useful molecules for ThO, but these experiments have comparable overall sensitivity). Recall that averaging over shot noise gives you an improvement of ##\sqrt{N}##, so to use quantum logic to compete with HfF+ you'd need a molecule that was ##\sqrt{1000} = 32## times more sensitive to eEDM. Edit: sorry, I should've toned down the lingo, eEDM = electon electric dipole moment [/QUOTE]
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Entangling atoms in a molecule
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