activity
20232026
most citedBethe ansatz solutions and hidden algebraic structure for a class of quasi-exactly solvable systems

5 citations · 12 across the 15 of their papers we have counts for

collaborators

17 papers

math-ph2026

Superintegrable systems in curved spaces via coalgebras and deformed Racah algebras

Samuel Jimenez-Swain, Ian Marquette, Yao-Zhong Zhang

We determine the Poisson algebras generated by partial Casimirs of undeformed and non-standard -deformed coalgebras, respectively. The derivation is performed…

math-ph2026

Geometric construction of superintegrable Poisson projection chains via Poisson centralizers

Kai Jiang, Guorui Ma, Ian Marquette +2

We introduce a geometric framework for constructing superintegrable systems from Poisson centralizers (commutants) in the Lie-Poisson algebra of a complex semisim…

math-ph2026

Poisson Centralisers and Polynomial Superintegrability for Magnetic Geodesic Flows on Reductive Homogeneous Spaces

Kai Jiang, Guorui Ma, Ian Marquette +2

We provide a method for formulating superintegrable magnetic geodesic flows on reductive homogeneous spaces , with a compact semisimple Lie group and a closed subgro…

math-ph2025

New quasi-exactly solvable systems from SUSYQM and Bethe Ansatz

Siyu Li, Ian Marquette, Yao-Zhong Zhang

We give a systematic construction of new quasi-exactly solvable systems via Bethe ansatz and supersymmetric quantum mechanics (SUSYQM). Methods based on the intertwining of superch…

math-ph2025

Subalgebra chains and nuclear physics: Commutant approach and construction of polynomial algebras

Rutwig Campoamor-Stursberg, Danilo Latini, Ian Marquette +2

In this paper, we review a new approach to study subalgebra chains in the context of nuclear physics. This approach does not rely on explicit r…

math-ph2025

Polynomial deformations of and unified algebraic framework for solutions of a class of spin models

Siyu Li, Ian Marquette, Yao-Zhong Zhang

We introduce novel polynomial deformations of the Lie algebra . We construct their finite-dimensional irreducible representations and the corresponding differential operator…

math-ph2025★ 1 cited

Polynomial algebra from the Lie algebra reduction chain : The supermultiplet model

Rutwig Campoamor-Stursberg, Danilo Latini, Ian Marquette +2

The supermultiplet model, based on the reduction chain , is revisited through the lens of commutants within unive…

math-ph2025★ 1 cited

On the construction of polynomial Poisson algebras: a novel grading approach

Rutwig Campoamor-Stursberg, Danilo Latini, Ian Marquette +2

In this work, we refine recent results on the explicit construction of polynomial algebras associated with commutants of subalgebras in enveloping algebras of Lie algebras by consi…

math-ph2025

Stäckel transform, coupling constant metamorphosis and algebraization of quasi-exactly solvable systems

Siyu Li, Ian Marquette, Yao-Zhong Zhang

We generalize the notions of the Stäckel transform and the coupling constant metamorphosis to quasi-exactly solvable systems. We discover that for a variety of one-dimensional and…

math-ph2025★ 1 cited

Exact physical quantities of the spin chain model with generic open boundary conditions

Pengcheng Lu, Junpeng Cao, Wen-Li Yang +2

We study the quantum integrable spin chain model associated with the twisted algebra (or simply the model) under generic open boundary conditions. The Hamil…

math-ph2024★ 1 cited

Exact surface energies and boundary excitations of the Izergin-Korepin model with generic boundary fields

Pengcheng Lu, Junpeng Cao, Wen-Li Yang +2

The Izergin-Korepin model is an integrable model with the simplest twisted quantum affine algebra symmetry. Applying the method, we derive the homogeneous ze…

math-ph2024

Polynomial Poisson Algebras and Superintegrable Systems from Cartan centralisers of Types , and

Rutwig Campoamor-Stursberg, Danilo Latini, Ian Marquette +2

In this work, we construct explicit formulas for the generators of the Cartan centralisers of complex semisimple Lie algebras and , the case being already know…

cond-mat.stat-mech2024

T-W relation and free energy of the antiperiodic XXZ chain with η=iπ/3 at a finite temperature

Pengcheng Lu, Junpeng Cao, Wen-Li Yang +2

We study the thermodynamics of the antiperiodic XXZ chain with anisotropy parameter η=iπ/3 by means of the t-W method. We parameterize the eigenvalues of both the transfer matrix a…

math-ph2024★ 2 cited

Root patterns and exact surface energy of the spin-1 Heisenberg model with generic open boundaries

Jiasheng Dong, Pengcheng Lu, Junpeng Cao +3

We investigate the thermodynamic limit and exact surface energy of the isotropic spin-1 Heisenberg chain with integrable generic open boundary conditions by a novel Bethe ansatz me…

math-ph2023★ 5 cited

Bethe ansatz solutions and hidden algebraic structure for a class of quasi-exactly solvable systems

Siyu Li, Ian Marquette, Yao-Zhong Zhang

The construction of analytic solutions for quasi-exactly solvable systems is an interesting problem. We revisit a class of models for which the odd solutions were largely missed pr…

math-ph2023

On polynomial symmetry algebras underlying superintegrable systems in Darboux spaces

Ian Marquette, Junze Zhang, Yao-Zhong Zhang

We review three different approaches to polynomial symmetry algebras underlying superintegrable systems in Darboux spaces. The first method consists of using deformed oscillator al…

math-ph2023★ 1 cited

Algebraic structures and Hamiltonians from the equivalence classes of 2D conformal algebras

Ian Marquette, Junze Zhang, Yao-Zhong Zhang

The construction of superintegrable systems based on Lie algebras and their universal enveloping algebras has been widely studied over the past decades. However, most constructions…