Institut for Matematik og Datalogi

Speaker: Guillaume Laplante-Anfossi (University of Southern Denmark)Abstract:The goal of this talk is to describe a strategy to compute algorithmically unstable homotopy groups of spheres modulo a prime number, using the theory of A-infinity algebras. This approach, which is based on Brown's theory of twisting cochains and its generalisation to A-infinity algebras by Kadeishvili, was proposed by Alain Prouté in 1986. One central ingredient that was missing at the time is a formula for the tensor product of A-infinity algebras and A-infinity morphisms, which are now available and were studied recently in combinatorics. In fact, these techniques can be used more generally to compute the homology of fibered spaces, and could potentially be used to develop a theory of Sullivan minimal models in characteristic p.

Speaker: Maximilian Schimpf (​Max Planck Institute for Math)Abstract:TBA

Matteo Trentin forsvarer sin ph.d.-afhandling ved et offentligt foredrag: “Serverless Computing in Cloud-Edge Scenarios”.Lektor Marco Peressotti vil være ordstyrer ved arrangementet. Ph.d.-forsvaret finder sted i IMADA Konferencelokale (Ø18-509-2).Alle er velkomne.

Speaker: Albert H. WernerUniversity of CopenhagenAbstract:Our ability to benchmark, verify, and control quantum devices ultimately rests on how well we understand their underlying dynamics. These dynamics are shaped not only by ideal Hamiltonian evolution, but also by time dependent effects and noise that arise in realistic settings. This talk will survey ideas for extracting meaningful dynamical descriptions of many qubit systems using simple, local measurements. Emphasis will be placed on how fundamental notions of locality limit the spread of information and make large scale quantum dynamics accessible through local data. The goal is to outline a set of ideas and methods that contribute to ongoing efforts to understand and characterize the dynamics of complex quantum devices.Location: D-IAS Aud. (V24-501a-0), Danish Institute for Advanced Study - DIASThe event is open to allCrémant and petit fours will be served after the talk

Speaker: Ingo Runkel (​University of Hamburg)Abstract:TBA

Speaker: Langwen Hui (University of Illinois)Abstract:TBA

Speaker: Boris Kjær (​University of Copenhagen)Abstract:TBA