Timeline for Why aren't particles constantly "measured" by the whole universe?
Current License: CC BY-SA 4.0
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| Feb 16, 2019 at 21:53 | history | edited | KF Gauss | CC BY-SA 4.0 |
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| Feb 16, 2019 at 21:46 | history | edited | KF Gauss | CC BY-SA 4.0 |
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| Feb 16, 2019 at 17:29 | comment | added | KF Gauss | @JPattarini, in fact larger molecules etc. do measure themselves so to speak. They lose the phase coherence I described, and ultimately stop being in pure quantum states. That's why to get quantum properties of larger molecules to manifest they must be cooled down, otherwise they look classical. The article "More is different" by P. Anderson discusses this exact example. | |
| Feb 16, 2019 at 14:53 | comment | added | JPattarini | I think a natural follow-up question is why complex structures like molecules aren’t constantly “measuring” their own constituents - with interference effects being demonstrated with larger and larger structures, it seems strange that the entire composite can be placed in superposition despite the rigid geometric/bond relationships within. | |
| Feb 16, 2019 at 0:36 | history | edited | KF Gauss | CC BY-SA 4.0 |
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| Feb 15, 2019 at 23:02 | history | edited | KF Gauss | CC BY-SA 4.0 |
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| Feb 15, 2019 at 9:34 | history | edited | KF Gauss | CC BY-SA 4.0 |
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| Feb 15, 2019 at 9:24 | history | answered | KF Gauss | CC BY-SA 4.0 |