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Quantum affine reflection algebras are coideal subalgebras of quantum affine algebras that lead to trigonometric reflection matrices (solutions of the boundary Yang-Baxter equation). In this paper we use the quantum affine reflection…

Quantum Algebra · Mathematics 2007-09-11 Gustav W. Delius , Alan George

In this article we fully describe the domain of the infinitesimal generator of the optimal state semigroup which arises in the theory of the linear-quadratic problem for a specific class of boundary control systems. This represents an…

Optimization and Control · Mathematics 2021-05-28 Paolo Acquistapace , Francesca Bucci

The algebraic formulation of the quantum group covariant noncommutative geometry in the framework of the $R$-matrix approach to the theory of quantum groups is given. We consider structure groups taking values in the quantum groups and…

High Energy Physics - Theory · Physics 2011-04-15 A. P. Isaev

We construct an explicit set of generators for the finite W-algebras associated to nilpotent matrices in the symplectic or orthogonal Lie algebras whose Jordan blocks are all of the same size. We use these generators to show that such…

Quantum Algebra · Mathematics 2008-09-09 Jonathan Brown

We solve $\mathcal{N}=1$ supersymmetric $A_{2}$ type $U(N)\times U(N)$ matrix models obtained by deforming $\mathcal{N}=2$ with symmetric tree level superpotentials of any degree exactly in the planar limit. These theories can be…

High Energy Physics - Theory · Physics 2010-12-03 Girma Hailu

We study involutive non-degenerate set-theoretic solutions (X,r) of the Yang-Baxter equation on a finite set X. The emphasis is on the case where (X,r) is indecomposable, so the associated permutation group acts transitively on X. One of…

Quantum Algebra · Mathematics 2020-12-16 Ferran Cedó , Jan Okniński

For the classical principal chiral model with boundary, we give the subset of the Yangian charges which remains conserved under certain integrable boundary conditions, and extract them from the monodromy matrix. Quantized versions of these…

High Energy Physics - Theory · Physics 2009-11-07 G. W. Delius , N. J. MacKay , B. J. Short

We develop a new approach to Baxter Q-operators by relating them to the theory of Yangians, which are the simplest examples for quantum groups. Here we open up a new chapter in this theory and study certain degenerate solutions of the…

Mathematical Physics · Physics 2011-06-13 Vladimir V. Bazhanov , Rouven Frassek , Tomasz Lukowski , Carlo Meneghelli , Matthias Staudacher

We develop a technique of construction of integrable models with a Z_2 grading of both the auxiliary (chain) and quantum (time) spaces. These models have a staggered disposition of the anisotropy parameter. The corresponding Yang-Baxter…

High Energy Physics - Theory · Physics 2008-03-17 D. Arnaudon , A. Sedrakyan , T. Sedrakyan , P. Sorba

Starting with a quantum particle on a closed manifold without boundary, we consider the process of generating boundaries by modding out by a group action with fixed points, and we study the emergent quantum dynamics on the quotient…

Quantum Physics · Physics 2018-05-17 Paolo Facchi , Giancarlo Garnero , Giuseppe Marmo , Joseph Samuel , Supurna Sinha

In this paper we consider families of multiparametric $R$-matrices to make a systematic study of the boundary Yang-Baxter equations in order to discuss the corresponding families of multiparametric $K$-matrices. Our results are indeed…

Exactly Solvable and Integrable Systems · Physics 2017-01-26 Ricardo S. Vieira , A. Lima-Santos

We give the center of the elliptic quantum group in general case. Based on the Dynamic Yang-Baxter Relation and the fusion method, we prove that the center commute with all generators of the elliptic quantum group. Then for a kind of…

Quantum Algebra · Mathematics 2007-05-23 Shao-You Zhao , Kang-Jie Shi , Rui-Hong Yue

We construct new non-diagonal solutions to the boundary Yang-Baxter-Equation corresponding to a two-dimensional field theory with U_q(a_2^(1)) quantum affine symmetry on a half-line. The requirements of boundary unitarity and boundary…

High Energy Physics - Theory · Physics 2014-11-18 Georg M. Gandenberger

We consider integrable vertex models whose Boltzmann weights (R-matrices) are trigonometric solutions to the graded Yang-Baxter equation. As is well known the latter can be generically constructed from quantum affine superalgebras…

Statistical Mechanics · Physics 2008-11-26 Christian Korff , Itzhak Roditi

This paper explores of the role of unitary braiding operators in quantum computing. We show that a single specific solution R (the Bell basis change matrix) of the Yang-Baxter Equation is a universal gate for quantum computing, in the…

Quantum Physics · Physics 2009-11-10 Louis H. Kauffman , Samuel J. Lomonaco

We give a method to produce representations of the braid group $B_n$ of $n-1$ generators ($n\leq \infty$). Moreover, we give sufficient conditions over a non unitary representation for being of this type. This method produces examples of…

Representation Theory · Mathematics 2009-09-29 Claudia Maria Egea , Esther Galina

We describe the construction of trigonometric R-matrices corresponding to the (multiplicity-free) tensor product of any two irreducible representations of a quantum algebra $U_q(\G)$. Our method is a generalization of the tensor product…

High Energy Physics - Theory · Physics 2009-10-28 Gustav W. Delius , Mark D. Gould , Yao-Zhong Zhang

We present Backlund transformations for the noncommutative anti-self-dual Yang-Mills equation where the gauge group is G=GL(2) and use it to generate a series of exact solutions from a simple seed solution. The solutions generated by this…

Exactly Solvable and Integrable Systems · Physics 2009-10-22 Claire R. Gilson , Masashi Hamanaka , Jonathan J. C. Nimmo

It is fundamental to view unitary braiding operators describing topological entanglements as universal quantum gates for quantum computation. This paper derives a unitary solution of the Quantum Yang--Baxter equation via Yang--Baxterization…

Quantum Physics · Physics 2007-05-23 Yong Zhang , Louis H. Kauffman , Mo-Lin Ge

We give a generators and relations presentation for the full monoidal subcategory of representations of the quantum orthogonal group generated by the quantum exterior powers of the defining representation.

Representation Theory · Mathematics 2025-08-27 Elijah Bodish , Haihan Wu
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