Fusion rules for the Temperley-Lieb algebra and its dilute generalisation

Abstract

The Temperley-Lieb (TL) family of algebras is well known for its role in building integrable lattice models. Even though a proof is still missing, it is agreed that these models should go to conformal field theories in the thermodynamic limit and that the limiting vector space should carry a representation of the Virasoro algebra. The fusion rules are a notable feature of the Virasoro algebra. One would hope that there is an analogous construction for the TL family. Such a construction was proposed by Read and Saleur [Nucl. Phys. B 777, 316 (2007)] and partially computed by Gainutdinov and Vasseur [Nucl. Phys. B 868, 223-270 (2013)] using the bimodule structure over the Temperley-Lieb algebras and the quantum group Uq(sl2). We use their definition for the dilute Temperley-Lieb (dTL) family, a generalisation of the original TL family. We develop a new way of computing fusion by using induction and show its power by obtaining fusion rules for both dTL and TL. We recover those computed by Gainutdivov and Vasseur and new ones that were beyond their scope. In particular, we identify a set of irreducible TL- or dTL-representations whose behavior under fusion is that of some irreducibles of the CFT minimal models.

61 pages, 6 figures

References in corpus (4)

• Associative-algebraic approach to logarithmic conformal field theories
• Enlarged symmetry algebras of spin chains, loop models, and S-matrices
• PT Symmetry on the Lattice: The Quantum Group Invariant XXZ Spin-Chain
• Dimer representations of the Temperley-Lieb algebra

Cited by in corpus (5)

• Fusion in the periodic Temperley-Lieb algebra and connectivity operators of loop models
• Restriction and induction of indecomposable modules over the Temperley-Lieb algebras
• On the computation of fusion over the affine Temperley-Lieb algebra
• Realizing the braided Temperley-Lieb-Jones C*-tensor categories as Hilbert C*-modules
• Fusion and monodromy in the Temperley-Lieb category