Talk:Phonon
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Origin of the name
[edit]The introduction tells us, without citation, that the concept of phonons was introduced in 1932 by Soviet physicist Igor Tamm. Does anyone know which publication this refers to?
On the other hand, the book Twentieth century physics, Vol. I (p.1302) tells us that the name phonon was introduced by Frenkel in his 1932 book Wave mechanics: Elementary theory to ridicule the notion of a photon. If someone has access to that book, it would be interesting to know exactly what Frenkel writes on the subject. Jähmefyysikko (talk) 06:14, 10 June 2023 (UTC)
superconductivity
[edit]This article says
Phonons have also been predicted to play a key role in superconductivity in materials and the prediction of superconductive compounds
whereas Britannica says
phonons are essential in the phenomenon of superconductivity... In superconducting metals at sufficiently low temperatures, however, electrons—which ordinarily repel each other—slightly attract each other through the intermediate effect of phonons. The result is that the electrons move through the material as a coherent group and no longer lose energy through individual collisions. Once this superconducting state has been achieved, any initial flow of electrical current will persist indefinitely. Espoo (talk) 06:09, 19 August 2023 (UTC)
- BCS theory uses phonons in its explanation. Among others, the transition temperature, Tc, is dependent on the isotope mass, which couples to phonons. Gah4 (talk) 09:18, 28 February 2024 (UTC)
Individual detection
[edit]I removed: However, photons are fundamental particles that can be individually detected, whereas phonons, being quasiparticles, are an emergent phenomenon. For those interested, the removed reference[1] is here. Gah4 (talk) 09:05, 28 February 2024 (UTC)
- Sorry to be two years late on this. What was your reason for removing this? DolyaIskrina (talk) 21:39, 5 October 2026 (UTC)
References
- ↑ Franklin, Alexander; Knox, Eleanor (2018-11-01). "Emergence without limits: The case of phonons". Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics. 64 (November 2018): 68–78. Bibcode:2018SHPMP..64...68F. doi:10.1016/j.shpsb.2018.06.001. S2CID 56400812. Retrieved 2023-06-10.
The lead is trying to do too much
[edit]Not until the "definition" section is it clear what is being described. Remember we are tasked in the lead with providing a clear explanation for the non-initiated, not making sure we cover all basis for the expert in one sentence. Let's discuss my rewrite here per BRD. DolyaIskrina (talk) 20:14, 3 October 2026 (UTC)