# Events for 02/17/2021 from all calendars

## Student/Postdoc Working Geometry Seminar

**Time: ** 10:15AM - 11:15AM

**Location: ** zoom

**Speaker: **Thomas Barthel, Duke U. Physics

**Title: ***Tensor-network simulations of quantum matter and entanglement*

**Abstract: **The non-locality of quantum many-body systems can be quantified by entanglement
measures. One finds that the entanglement in most states occurring in nature is
far below the theoretical maximum. Hence, it is possible to describe such
systems with a reduced set of effective degrees of freedom. This is exploited
in simulation techniques based on tensor network states. I will discuss
corresponding algorithms employing different types of tensor networks: matrix
product states (MPS), projected entangled-pair states (PEPS), and the
multiscale entanglement renormalization ansatz (MERA). The computation costs
are intimately related to the scaling of entanglement entropies in the
simulated systems, for which I will give a short overview.

## Groups and Dynamics Seminar

**Time: ** 12:00PM - 1:00PM

**Location: ** online

**Speaker: **Nguyen-Bac Dang, SUNY Stony Brook

**Title: **