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Related papers: BC Toda chain II: symmetries. Dual picture

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In the previous paper we introduced a commuting family of Baxter Q-operators for the quantum Ruijsenaars hyperbolic system. In the present work we show that the wave functions of the quantum system found by M. Halln\"as and S. Ruijsenaars…

Mathematical Physics · Physics 2023-08-30 N. Belousov , S. Derkachov , S. Kharchev , S. Khoroshkin

We obtain Gauss-Givental integral representation for the eigenfunctions of quantum Toda chain with boundary interaction of BC type. For this we introduce reflection operator satisfying reflection equation with DST chain Lax matrices.…

Mathematical Physics · Physics 2026-03-20 N. Belousov , S. Derkachov , S. Khoroshkin

We construct the Baxter operator $\boldsymbol{ \texttt{Q} }(\lambda)$ for the $q$-Toda chain and the Toda$_2$ chain (the Toda chain in the second Hamiltonian structure). Our construction builds on the relation between the Baxter operator…

Mathematical Physics · Physics 2018-08-01 O. Babelon , K. K. Kozlowski , V. Pasquier

In the previous paper we showed that the wave functions of the quantum Ruijsenaars hyperbolic system diagonalize Baxter Q-operators. Using this property and duality relation we prove orthogonality and completeness relations for the wave…

Mathematical Physics · Physics 2023-08-01 N. Belousov , S. Derkachov , S. Kharchev , S. Khoroshkin

We propose integral representations for wave functions of B_n, C_n, and D_n open Toda chains at zero eigenvalues of the Hamiltonian operators thus generalizing Givental representation for A_n. We also construct Baxter Q-operators for closed…

Representation Theory · Mathematics 2007-05-23 A. Gerasimov , D. Lebedev , S. Oblezin

We show that hyperoctahedral Whittaker functions---diagonalizing an open quantum Toda chain with one-sided boundary potentials of Morse type---satisfy a dual system of difference equations in the spectral variable. This extends a well-known…

Mathematical Physics · Physics 2021-09-22 J. F. van Diejen , E. Emsiz

Recently integral representations for the eigenfunctions of quadratic open Toda chain Hamiltonians for classical groups was proposed. This representation generalizes Givental representation for A_n. In this note we verify that the wave…

Representation Theory · Mathematics 2007-05-23 A. Gerasimov , D. Lebedev , S. Oblezin

In this contribution, we give an integral representation of the wave functions of the quantum N-particle Toda chain with boundary interaction. In the case of the Toda chain with one-boundary interaction, we obtain the wave function by an…

Exactly Solvable and Integrable Systems · Physics 2015-06-26 Nikolai Iorgov , Vitaly Shadura

We propose group theory interpretation of the integral representation of the quantum open Toda chain wave function due to Givental. In particular we construct the representation of $U((\mathfrak{gl}(N))$ in terms of first order differential…

Representation Theory · Mathematics 2007-05-23 A. Gerasimov , S. Kharchev , D. Lebedev , S. Oblezin

The $b$-Whittaker functions are eigenfunctions of the modular $q$-deformed $\mathfrak{gl}_n$ open Toda system introduced by Kharchev, Lebedev, and Semenov-Tian-Shansky. Using the quantum inverse scattering method, the named authors obtained…

Mathematical Physics · Physics 2018-11-20 Gus Schrader , Alexander Shapiro

Intertwiners between representations of Lie groups can be used to obtain relations for matrix elements. We apply this technique to obtain different identities for the wave functions of the open Toda chain, in particular raising operators…

Representation Theory · Mathematics 2007-05-23 Alexander Chervov

In this paper we introduce Baxter integral Q-operators for finite-dimensional Lie algebras gl(n+1) and so(2n+1). Whittaker functions corresponding to these algebras are eigenfunctions of the Q-operators with the eigenvalues expressed in…

Representation Theory · Mathematics 2009-11-13 A. Gerasimov , D. Lebedev , S. Oblezin

The paper deals with the analytic theory of the quantum q-deformed Toda chain; the technique used combines the methods of representation theory and the Quantum Inverse Scattering Method. The key phenomenon which is under scrutiny is the…

High Energy Physics - Theory · Physics 2009-11-07 S. Kharchev , D. Lebedev , M. Semenov-Tian-Shansky

We suggest the procedure of the construction of Baxter Q-operators for Toda chain . Apart from the one-paramitric family of Q-operators, considered in our recent paper (hep-th/9908179) we also give the construction of two basic Q-operators…

Exactly Solvable and Integrable Systems · Physics 2009-10-31 G. P. Pronko

We conjecture an explicit construction of integral operators intertwining various quantum Toda chains. Compositions of the intertwining operators provide recursive and Q-operators for quantum Toda chains. In particular we propose a…

Representation Theory · Mathematics 2009-07-03 Anton Gerasimov , Dimitri Lebedev , Sergey Oblezin

Recently we found Mellin-Barnes integrals, representing the wave function for $GL(n,\mathbb{R})$ hyperbolic Sutherland model. In present paper, we establish bispectral properties of this wave function with respect to dual…

Representation Theory · Mathematics 2021-08-13 S. Kharchev , S. Khoroshkin

We consider Baxter Q-operators for various versions of quantum affine Toda chain. The interpretation of eigenvalues of the finite Toda chain Baxter operators as local Archimedean L-functions proposed recently is generalized to the case of…

Representation Theory · Mathematics 2008-03-30 A. Gerasimov , D. Lebedev , S. Oblezin

We use the Pieri rules to recover the q-boson model and show it is equivalent to a discretized version of the relativistic Toda chain. We identify its semi infinite transfer matrix and the corresponding Baxter Q-matrix with half vertex…

Mathematical Physics · Physics 2016-01-13 Antoine Duval , Vincent Pasquier

The integral representations for the eigenfunctions of $N$ particle quantum open and periodic Toda chains are constructed in the framework of Quantum Inverse Scattering Method (QISM). Both periodic and open $N$-particle solutions have…

High Energy Physics - Theory · Physics 2008-11-26 S. Kharchev , D. Lebedev

We endow Ruijsenaars' open difference Toda chain with a one-sided boundary interaction of Askey-Wilson type and diagonalize the quantum Hamiltonian by means of deformed hyperoctahedral $q$-Whittaker functions that arise as a $t=0$…

Mathematical Physics · Physics 2015-03-24 J. F. van Diejen , E. Emsiz
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