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Formulating quantum integrability for nonultralocal models (NM) parallel to the familiar approach of inverse scattering method is a long standing problem. After reviewing our result regarding algebraic structures of ultralocal models, we…

High Energy Physics - Theory · Physics 2007-05-23 Anjan Kundu

The aim of this review is to present the list of by now a significant collection of quantum integrable models, ultralocal as well as nonultralocal, in a systematic way stressing on their underlying unifying algebraic structures. We restrict…

High Energy Physics - Theory · Physics 2007-05-23 Anjan Kundu

One of the few schemes for obtaining an integrable nonultralocal quantum model is its possible generation from an ultralocal model by a suitable gauge transformation. Applying this scheme we discover two new nonultralocal models, which fit…

High Energy Physics - Theory · Physics 2007-05-23 Anjan Kundu

Extension of the braid relations to the multiple braided tensor product of algebras that can be used for quantization of nonultralocal models is presented. The Yang--Baxter--type consistency conditions as well as conditions for the…

High Energy Physics - Theory · Physics 2009-10-28 L. Hlavaty

Applying braided Yang-Baxter equation quantum integrable and Bethe ansatz solvable 1D anyonic lattice and field models are constructed. Along with known models we discover novel lattice anyonic and $q$-anyonic models as well as nonlinear…

Exactly Solvable and Integrable Systems · Physics 2015-02-04 Anjan Kundu

A common approach to the quantization of integrable models starts with the formal substitution of the Yang-Baxter Poisson algebra with its quantum version. However it is difficult to discern the presence of such an algebra for the so-called…

High Energy Physics - Theory · Physics 2022-03-08 Vladimir V. Bazhanov , Gleb A. Kotousov , Sergei L. Lukyanov

A new type of algebras that represent a generalization of both quantum groups and braided groups is defined. These algebras are given by a pair of solutions of the Yang--Baxter equation that satisfy some additional conditions. Several…

High Energy Physics - Theory · Physics 2009-10-22 Ladislav Hlavaty

In this article we review the basic concepts regarding quantum integrability. Special emphasis is given on the algebraic content of integrable models. The associated algebras are essentially described by the Yang-Baxter and boundary…

Mathematical Physics · Physics 2010-09-29 Anastasia Doikou , Stefano Evangelisti , Giovanni Feverati , Nikos Karaiskos

The Yang-Baxter equation and it's various forms have applications in many fields, including statistical mechanics, knot theory, and quantum information. Unitary solutions of the braided Yang-Baxter equation are of particular interest as…

Quantum Physics · Physics 2023-04-04 David Lovitz

Various aspects of the theory of quantum integrable systems are reviewed. Basic ideas behind the construction of integrable ultralocal and nonultralocal quantum models are explored by exploiting the underlying algebraic structures related…

High Energy Physics - Theory · Physics 2016-09-06 Anjan Kundu

We study a quantum Yang-Baxter structure associated with non-ultralocal lattice models. We discuss the canonical structure of a class of integrable quantum mappings, i.e. canonical transformations preserving the basic commutation relations.…

High Energy Physics - Theory · Physics 2007-05-23 F. W. Nijhoff , H. W. Capel

Supersymmetry algebras can be used to obtain algebraic expressions for constant Yang-Baxter solutions, also known as braid group generators. This was done for non-invertible braid operators in \cite{maity2025non}. In this work we extend…

High Energy Physics - Theory · Physics 2025-08-07 Somnath Maity , Pramod Padmanabhan , Jarmo Hietarinta , Vladimir Korepin

The unitary braiding operators describing topological entanglements can be viewed as universal quantum gates for quantum computation. With the help of the Brylinskis's theorem, the unitary solutions of the quantum Yang--Baxter equation can…

Quantum Physics · Physics 2016-09-08 Yong Zhang , Louis H. Kauffman , Mo-Lin Ge

A coloured braid group representation (CBGR) is constructed with the help of some modified universal ${\cal R}$-matrix, associated to $U_q(gl(2))$ quantised algebra. Explicit realisation of Faddeev-Reshetikhin-Takhtajan (FRT) algebra is…

High Energy Physics - Theory · Physics 2008-02-03 B. Basu-Mallick

A lattice regularized Lax operator for the nonultralocal modified Korteweg de Vries (mKdV) equation is proposed at the quantum level with the basic operators satisfying a $q$-deformed braided algebra. Finding further the associated quantum…

High Energy Physics - Theory · Physics 2009-10-28 Anjan Kundu

We introduce the notion of a braided Lie algebra consisting of a finite-dimensional vector space $\CL$ equipped with a bracket $[\ ,\ ]:\CL\tens\CL\to \CL$ and a Yang-Baxter operator $\Psi:\CL\tens\CL\to \CL\tens\CL$ obeying some axioms. We…

High Energy Physics - Theory · Physics 2009-10-22 Shahn Majid

Unitary braiding operators can be used as robust entangling quantum gates. We introduce a solution-generating technique to solve the $(d,m,l)$-generalized Yang-Baxter equation, for $m/2\leq l \leq m$, which allows to systematically…

Quantum Physics · Physics 2020-09-01 Pramod Padmanabhan , Fumihiko Sugino , Diego Trancanelli

Quantum monodromy matrices coming from a theory of two coupled (m)KdV equations are modified in order to satisfy the usual Yang-Baxter relation. As a consequence, a general connection between braided and {\it unbraided} (usual) Yang-Baxter…

High Energy Physics - Theory · Physics 2009-11-07 Davide Fioravanti , Marco Rossi

A generalization of the Yang-Baxter algebra is found in quantizing the monodromy matrix of two (m)KdV equations discretized on a space lattice. This braided Yang-Baxter equation still ensures that the transfer matrix generates operators in…

High Energy Physics - Theory · Physics 2008-11-26 Davide Fioravanti , Marco Rossi

We apply the fusion procedure to a quantum Yang-Baxter algebra associated with time-discrete integrable systems, notably integrable quantum mappings. We present a general construction of higher-order quantum invariants for these systems. As…

High Energy Physics - Theory · Physics 2009-10-22 F. W. Nijhoff , H. W. Capel
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