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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Combinatorial approach to Mathieu and Lame equations

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Author(s):
He, Wei [1, 2]
Total Authors: 1
Affiliation:
[1] Univ Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, SP - Brazil
[2] Zhejiang Univ, Ctr Math Sci, Hangzhou 310027, Zhejiang - Peoples R China
Total Affiliations: 2
Document type: Journal article
Source: Journal of Mathematical Physics; v. 56, n. 7 JUL 2015.
Web of Science Citations: 4
Abstract

Based on some recent progress on a relation between four dimensional super Yang-Mills gauge theory and quantum integrable system, we study the asymptotic spectrum of the quantum mechanical problems described by the Mathieu equation and the Lame equation. The large momentum asymptotic expansion of the eigenvalue is related to the instanton partition function of supersymmetric gauge theories which can be evaluated by a combinatorial method. The electro-magnetic duality of gauge theory indicates that in the parameter space, there are three asymptotic expansions for the eigenvalue, and we confirm this fact by performing the Wentzel-Kramers-Brillouin (WKB) analysis in each asymptotic expansion region. The results presented here give some new perspective on the Floquet theory about periodic differential equation. (C) 2015 AIP Publishing LLC. (AU)

FAPESP's process: 11/21812-8 - Quantum Gauge Theory and Integrable Systems
Grantee:Wei He
Support Opportunities: Scholarships in Brazil - Post-Doctoral