Jump to content

Talk:Quantum phase transition

Page contents not supported in other languages.
From Wikipedia, the free encyclopedia
This is an old revision of this page, as edited by Saibod (talk | contribs) at 11:05, 31 August 2007 (what is so "quantum" about a QPT?). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.
WikiProject iconPhysics Unassessed
WikiProject iconThis article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics
???This article has not yet received a rating on Wikipedia's content assessment scale.
???This article has not yet received a rating on the project's importance scale.

What does "Such quantum phase transitions can be phase transition or continuous" mean? I guess it is a typo. What should it say?

what is so "quantum" about a QPT?

I fail to see in what sense quantum effects are relevant for a QPT. Take a classical antiferromagnetic spin lattice, for example: why shouldn't there be a phase transition when the external magnetic field is varied?

Also, the statement "A classical system does not have entropy at zero temperature" also applies in the quantum case since a pure state has vanishing entropy. - Saibod 11:05, 31 August 2007 (UTC)[reply]

Retrieved from "https://en.wikipedia.org/w/index.php?title=Talk:Quantum_phase_transition&oldid=154785305"