Hi all, Tomorrow we are back in E41.1 at 3pm. We'll hear from Artemiy Burov, who will present the results of his master thesis that he did under the supervision of Johannes Bausch in Cambridge. The title and abstract are below. Best, -joe Title: The Complexity of Low-Dimensional Translationally-Invariant Spin Lattices Abstract: In this presentation I will give an overview of the proof of hardness of the Translationally-Invariant Local Hamiltonian Problem for the case of 2D systems using the technique of embedding a Turing Machine into a spin lattice.