English

Standard $\lambda$-lattices, rigid ${\rm C}^*$ tensor categories, and (bi)modules

Operator Algebras 2020-10-15 v2 Category Theory Quantum Algebra

Abstract

In this article, we construct a 2-shaded rigid C{\rm C}^* multitensor category with canonical unitary dual functor directly from a standard λ\lambda-lattice. We use the notions of traceless Markov towers and lattices to define the notion of module and bimodule over standard λ\lambda-lattice(s), and we explicitly construct the associated module category and bimodule category over the corresponding 2-shaded rigid C{\rm C}^* multitensor category. As an example, we compute the modules and bimodules for Temperley-Lieb-Jones standard λ\lambda-lattices in terms of traceless Markov towers and lattices. Translating into the unitary 2-category of bigraded Hilbert spaces, we recover DeCommer-Yamshita's classification of TLJ\mathcal{TLJ} modules in terms of edge weighted graphs, and a classification of TLJ\mathcal{TLJ} bimodules in terms of biunitary connections on square-partite weighted graphs. As an application, we show that every (infinite depth) subfactor planar algebra embeds into the bipartite graph planar algebra of its principal graph.

Keywords

Cite

@article{arxiv.2009.09273,
  title  = {Standard $\lambda$-lattices, rigid ${\rm C}^*$ tensor categories, and (bi)modules},
  author = {Quan Chen},
  journal= {arXiv preprint arXiv:2009.09273},
  year   = {2020}
}

Comments

81 pages, many figures

R2 v1 2026-06-23T18:39:48.379Z