Timeline for Resource on quantum to classical
Current License: CC BY-SA 4.0
13 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 24 at 0:47 | history | notice added | Qmechanic♦ | Book Recommendation | |
| Jul 7, 2023 at 20:28 | answer | added | Bairrao | timeline score: 1 | |
| Jul 7, 2023 at 18:01 | comment | added | junfan02 | Thanks a lot sir, I will go through the links | |
| Jul 7, 2023 at 17:34 | comment | added | Cosmas Zachos | Linked, & linked, & linked. | |
| Jul 7, 2023 at 15:55 | comment | added | Cosmas Zachos | Some of us find comfort in monitoring the classical limit of (quantum) Moyal brackets to Poisson brackets, in phase space; are you at peace with all of classical mechanics following from Poisson brackets? If so, all you need is study the phase-space formulation of QM, to eliminate Hilbert space in its cultural mismatch to classical mechanics.... Regardless of bloviations and platitudes, in this formulation you must work out concrete, specific problems to appreciate the point... | |
| Jul 7, 2023 at 15:29 | comment | added | junfan02 | I was asking the first one in the sense that, can all of classical mechanics/physics be derived from quantum mechanics | |
| Jul 7, 2023 at 13:15 | comment | added | Paul Young | Can you clarify your question? Are you asking how all of classical mechanics can be derived from quantum, or are you only asking how certain results of quantum mechanics converge at large quantum number into the classical result? Quantum can only be defined with reference to classical, and not all quantum results converge to classical. The wikipedia entry on "correspondence principle" might help you to refine your question? | |
| Jul 7, 2023 at 8:36 | history | edited | Qmechanic♦ | CC BY-SA 4.0 |
edited tags; Post Made Community Wiki
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| Jul 7, 2023 at 7:59 | answer | added | alanf | timeline score: 0 | |
| Jul 7, 2023 at 4:19 | comment | added | Ghoster | Wikipedia: “the mathematical operation involved in classical limits is a group contraction, approximating physical systems where the relevant action is much larger than the reduced Planck constant ħ, so the "deformation parameter" ħ/S can be effectively taken to be zero (cf. Weyl quantization.) Thus typically, quantum commutators (equivalently, Moyal brackets) reduce to Poisson brackets, in a group contraction.” | |
| Jul 7, 2023 at 4:06 | comment | added | junfan02 | Familiar, but not very comfortable. I will slog through it if necessary | |
| Jul 7, 2023 at 4:05 | comment | added | Connor Behan | Are you familiar with the path integral formulation of QM? | |
| Jul 7, 2023 at 3:53 | history | asked | junfan02 | CC BY-SA 4.0 |