Talk:Instanton
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Very nice, but the article doesn't actually say what an instanton is. Anyone with enough knowledge of theoretical physics want to take a crack at putting some text in this article? Erik Carson
Followup: Ask and ye shall receive. Erik Carson 19:57, 2004 Mar 30 (UTC)
- I am a mathematician trying to understand what this article means mathematically, but am limited by the deluge of physics jargon starting from the very beginning of this article. Could at least the introduction be rewritten to be understandable to someone without graduate-level physics knowledge? - Gauge 04:40, 21 August 2005 (UTC)
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- I've just rewritten the article so that it explains the more general meaning of the term "instanton". The relation to Yang-Mills gauge theory in Minkowski space should be clarified in a subsection. I apologize for leaving the edit in an incomplete state; it will take some time to get everything right.
U(1) doesn't have instantons. π3(U(1)) = 0. No Abelian gauge theory has instantons. Phys 20:17, 20 October 2005 (UTC)
- U(1) gauge theories in two dimensions do have instantons. Spatial infinity here is a circle, and π1(U(1)) = Z. This is the case the author was discussing.</math>
[edit] Put some "m"
Just put the "m" relating to the mass of the particle where needed in the part about Instanton in Quantum Mechanics
[edit] Typo
The WKB expression for the probability for the particle to tunnel should be real. The i should be replaced with a 2.
http://upload.wikimedia.org/math/5/c/7/5c719dcaa6e7112fb76f501b5f57a598.png —The preceding unsigned comment was added by 71.136.90.228 (talk) 13:03, 7 December 2006 (UTC).
