Talk:Spectral gap (physics)

	This article was reviewed by member(s) of WikiProject Articles for creation. The project works to allow users to contribute quality articles and media files to the encyclopedia and track their progress as they are developed. To participate, please visit the project page for more information.Articles for creationWikipedia:WikiProject Articles for creationTemplate:WikiProject Articles for creationAfC
???	This article has not yet received a rating on Wikipedia's content assessment scale.
	This article was accepted from this draft on 19 December 2018 by reviewer Gpkp (talk · contribs).

It should be noted that the undecideability only is for inifite "chunks" of matter, and finite ones can behave differently. This also means that the spectral gap may appear or disappear (or oscillate) if you increase/decrease the amount of matter that you are testing.