Junction type representations of the Temperley-Lieb algebra and associated symmetries

TL;DR

This paper introduces new representations of the Temperley-Lieb algebra, explores their symmetries including quantum algebraic realizations, and constructs related quantum spin chains with exact symmetries.

Contribution

It presents a novel family of algebra representations, analyzes associated symmetries, and develops solutions to Yang-Baxter and reflection equations for quantum spin chains.

Findings

New representations of the Temperley-Lieb algebra introduced

Existence of non-trivial quantum algebraic symmetries shown

Constructed quantum spin chain with exact symmetry

Abstract

Inspired by earlier works on representations of the Temperley-Lieb algebra we introduce a novel family of representations of the algebra. This may be seen as a generalization of the so called asymmetric twin representation. The underlying symmetry algebra is also examined and it is shown that in addition to certain obvious exact quantum symmetries non trivial quantum algebraic realizations that exactly commute with the representation also exist. Non trivial representations of the boundary Temperley-Lieb algebra as well as the related residual symmetries are also discussed. The corresponding novel R and K matrices solutions of the Yang-Baxter and reflection equations are identified, the relevant quantum spin chain is also constructed and its exact symmetry is studied.