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Texas A&M University

Events for 02/17/2021 from all calendars

Student/Postdoc Working Geometry Seminar

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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

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Time: 12:00PM - 1:00PM

Location: online

Speaker: Nguyen-Bac Dang, SUNY Stony Brook