# Is solid state physics the same as condensed matter physics?

I've been under the impression that "solid state physics" is just an older term for what is now commonly called "condensed matter physics," i.e. that they refer to essentially the same types of physics. Is that actually true? (Or, perhaps I should say, is that view also common in the wider world outside my department?)

I see that we have both a solid-state-physics tag and a condensed-matter tag. If the terms are actually synonymous, I'll merge the tags together; otherwise I think we should get started writing tag wikis that distinguish them.

• Makes sense to me. I don't think we even necessarily need to always have condensed-matter appear with solid-state-physics; we can just mention in the tag wiki that the latter is a subfield of the former. (If anyone wants to get started writing that tag wiki, be my guest :p) – David Z Jan 15 '11 at 21:09
• I agree with @David. Adding redundant tags will just pollute the tags list. It's like adding both mechanics and classical-mechanics. meta.physics.stackexchange.com/questions/290/… – Malabarba Jan 18 '11 at 22:28