Timeline for How does a system interact with environment in quantum mechanics? When would this interaction occur? What is it?
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
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| Aug 31, 2014 at 12:43 | answer | added | Bubble | timeline score: 1 | |
| Jul 27, 2014 at 12:16 | comment | added | Trimok | It is just the contrary: Decoherence destroys interference and non-diagonal terms in the reduced density matrix... | |
| Jul 27, 2014 at 9:17 | answer | added | yuggib | timeline score: 1 | |
| Jul 27, 2014 at 7:59 | comment | added | anna v | At this level with photon exchanges, there is nothing else long distance acting and as strong, no? | |
| Jul 27, 2014 at 5:36 | comment | added | user55624 | If wavefunctions of two "systems"(well, let us set aside QFT for now) have been not connected before interaction, how do they really interact? Is there some sorts of wavefunction of whole universe (universal wavefunction) that how things occur together non-locally or locally is probabilistically known? Or is there any theory that talks about how these interactions will take place between separate wavefunctions? | |
| Jul 27, 2014 at 5:33 | comment | added | user55624 | For example, Lubos Motl, in his blog motls.blogspot.kr/2009/09/…, talks about interaction. "In general, the photon states are not exactly orthogonal. But when you calculate how quickly the process destroys the off-diagonal elements of the density matrix, it is extremely fast. Even the interactions with the cosmic microwave background are enough for a very tiny speck of dust to decohere within a tiny fraction of a second." | |
| Jul 27, 2014 at 5:28 | comment | added | anna v | This does not make much sense, because quantum mechanics is about very small dimensions, and "system" and "environment" are blanket words for large ensembles of particles of these small dimensions. The density matrix formalism has been developed for this purpose. What do you mean by "system" and "environment"? | |
| Jul 27, 2014 at 4:56 | history | edited | user55624 | CC BY-SA 3.0 |
added 22 characters in body
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| Jul 27, 2014 at 4:00 | history | asked | user55624 | CC BY-SA 3.0 |