Bethe Ansatz Solutions to Quasi Exactly Solvable Difference Equations

Bethe ansatz formulation is presented for several explicit examples of quasi exactly solvable difference equations of one degree of freedom which are introduced recently by one of the present authors. These equations are deformation of the well-known exactly solvable difference equations of the Meix...

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Date:2009
Main Authors: Sasaki, Ryu, Yang, Wen-Li, Zhang, Yao-Zhong
Format: Article
Language:English
Published: Інститут математики НАН України 2009
Series:Symmetry, Integrability and Geometry: Methods and Applications
Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/149104
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:Bethe Ansatz Solutions to Quasi Exactly Solvable Difference Equations / Ryu Sasaki, Wen-Li Yang, Yao-Zhong Zhang // Symmetry, Integrability and Geometry: Methods and Applications. — 2009. — Т. 5. — Бібліогр.: 24 назв. — англ.

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spelling nasplib_isofts_kiev_ua-123456789-1491042025-02-09T10:27:43Z Bethe Ansatz Solutions to Quasi Exactly Solvable Difference Equations Sasaki, Ryu Yang, Wen-Li Zhang, Yao-Zhong Bethe ansatz formulation is presented for several explicit examples of quasi exactly solvable difference equations of one degree of freedom which are introduced recently by one of the present authors. These equations are deformation of the well-known exactly solvable difference equations of the Meixner-Pollaczek, continuous Hahn, continuous dual Hahn, Wilson and Askey-Wilson polynomials. Up to an overall factor of the so-called pseudo ground state wavefunction, the eigenfunctions within the exactly solvable subspace are given by polynomials whose roots are solutions of the associated Bethe ansatz equations. The corresponding eigenvalues are expressed in terms of these roots. This paper is a contribution to the Proceedings of the 5-th Microconference “Analytic and Algebraic Methods V”. The financial support from Australian Research Council is gratefully acknowledged. R.S. is supported in part by Grants-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology, No.18340061 and No.19540179. Y.Z.Z. thanks the Yukawa Institute for Theoretical Physics, Kyoto University for hospitality and financial support. 2009 Article Bethe Ansatz Solutions to Quasi Exactly Solvable Difference Equations / Ryu Sasaki, Wen-Li Yang, Yao-Zhong Zhang // Symmetry, Integrability and Geometry: Methods and Applications. — 2009. — Т. 5. — Бібліогр.: 24 назв. — англ. 1815-0659 2000 Mathematics Subject Classification: 35Q40; 37N20; 39A70; 82B23 https://nasplib.isofts.kiev.ua/handle/123456789/149104 en Symmetry, Integrability and Geometry: Methods and Applications application/pdf Інститут математики НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
description Bethe ansatz formulation is presented for several explicit examples of quasi exactly solvable difference equations of one degree of freedom which are introduced recently by one of the present authors. These equations are deformation of the well-known exactly solvable difference equations of the Meixner-Pollaczek, continuous Hahn, continuous dual Hahn, Wilson and Askey-Wilson polynomials. Up to an overall factor of the so-called pseudo ground state wavefunction, the eigenfunctions within the exactly solvable subspace are given by polynomials whose roots are solutions of the associated Bethe ansatz equations. The corresponding eigenvalues are expressed in terms of these roots.
format Article
author Sasaki, Ryu
Yang, Wen-Li
Zhang, Yao-Zhong
spellingShingle Sasaki, Ryu
Yang, Wen-Li
Zhang, Yao-Zhong
Bethe Ansatz Solutions to Quasi Exactly Solvable Difference Equations
Symmetry, Integrability and Geometry: Methods and Applications
author_facet Sasaki, Ryu
Yang, Wen-Li
Zhang, Yao-Zhong
author_sort Sasaki, Ryu
title Bethe Ansatz Solutions to Quasi Exactly Solvable Difference Equations
title_short Bethe Ansatz Solutions to Quasi Exactly Solvable Difference Equations
title_full Bethe Ansatz Solutions to Quasi Exactly Solvable Difference Equations
title_fullStr Bethe Ansatz Solutions to Quasi Exactly Solvable Difference Equations
title_full_unstemmed Bethe Ansatz Solutions to Quasi Exactly Solvable Difference Equations
title_sort bethe ansatz solutions to quasi exactly solvable difference equations
publisher Інститут математики НАН України
publishDate 2009
url https://nasplib.isofts.kiev.ua/handle/123456789/149104
citation_txt Bethe Ansatz Solutions to Quasi Exactly Solvable Difference Equations / Ryu Sasaki, Wen-Li Yang, Yao-Zhong Zhang // Symmetry, Integrability and Geometry: Methods and Applications. — 2009. — Т. 5. — Бібліогр.: 24 назв. — англ.
series Symmetry, Integrability and Geometry: Methods and Applications
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AT zhangyaozhong betheansatzsolutionstoquasiexactlysolvabledifferenceequations
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