English

From quantum loop superalgebras to super Yangians

Quantum Algebra 2024-04-18 v2 Representation Theory

Abstract

The goal of this paper is to generalize a statement by Drinfeld, asserting that Yangians can be constructed as limit forms of the quantum loop algebras, to the super case. We establish a connection between quantum loop superalgebra and super Yangian of the general linear Lie superalgebra glMN\mathfrak{gl}_{M|N} in RTT type presentation. In particular, we derive the Poincar\'e-Birkhoff-Witt(PBW) theorem for the quantum loop superalgebra Uq(LglMN)\mathrm{U}_q\big(\mathfrak{Lgl}_{M|N}\big). Additionally, we investigate the application of the same argument to twisted super Yangian of the ortho-symplectic Lie superalgebra. For this purpose, we introduce the twisted quantum loop superalgebra as a one-sided coideal of Uq(LglM2n)\mathrm{U}_q\big(\mathfrak{Lgl}_{M|2n}\big) with respect to the comultiplication.

Keywords

Cite

@article{arxiv.2306.07548,
  title  = {From quantum loop superalgebras to super Yangians},
  author = {Hongda Lin and Yongjie Wang and Honglian Zhang},
  journal= {arXiv preprint arXiv:2306.07548},
  year   = {2024}
}

Comments

34 pages, 2 figures.Comments are welcome!

R2 v1 2026-06-28T11:03:36.845Z