Simple Search

Query:

Enter a query and click »Search«...

Format:

Display: entries per page entries

Zbl 0989.81028
Dunne, Gerald V.; Rao, Kumar
Lamé instantons. (English)
[J] J. High Energy Phys. 4, No.1, Paper No.01(2000)019, 7 p. (2000). ISSN 1029-8479/e

Summary: We perform a precise analytic test of the instanton approximation by comparing the exact band spectrum of the periodic Lam'e potential to the tight-binding, instanton and WKB approximations. The instanton result gives the correct leading behavior in the semiclassical limit, while the tight-binding approximation does even better. WKB is off by an overall factor of $\sqrt{e/\pi}$.

MSC 2000:: *81Q20 Semi-classical techniques in quantum theory
81T10 Model quantum field theories

Comment on this Item PDF MathML XML ASCII DVI PS BibTeX Online Ordering Article Journal Journal

	Scientific prize winners of the ICM 2010
	Overhang
	Lie groups, physics and geometry. An introduction for physicists, engineers and chemists.

Simple Search

Zentralblatt MATH Berlin [Germany]