The Yangian symmetry of the Hubbard model

Frank Göhmann, Vladimir Inozemtsev

Shuichi Murakami

Shuichi Murakami, Frank Göhmann

Harald Grosse

Alejandro De La Rosa Gomez, Niall J MacKay

We show that, in the open Hubbard model with integrable boundary conditions, the bulk Yangian symmetry is broken to a twisted Yangian. We prove that the associated charges commute with the Hamiltonian and the reflection matrix, and that they form a coideal subalgebra.

E. Ahmed, A. S. Hegazi