Institut for Matematik og Datalogi

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: Adela Zhang (​University of Copenhagen)Abstract:With Barkan and Steinebrunner, we show that any open field theory extends canonically to an open-closed field theory whose value at the circle is the Hochschild homology object of the E_1-Frobenius algebras (i.e. E_1-Calabi-Yau objects) A associated to F. In particular, we show that the open-closed bordism category is obtained by formally adjoining iterated Hochchild homology to the open bordism category. As a corollary, we determine that the moduli spaces of surfaces is the space of universal formal operations on the Hochschild homology object of E_1-Frobenius algebras. This provides a space level refinement of previous work of Costello (over Q) and Wahl (over Z).Time permitting, I will also explain work with Andrea Bianchi on canonical local to global extensions of graph TFTs associated with E_\infty-Frobenius objects, i.e. in dimension infinity. In this case, we show that the graph cobordism category is obtained by formally adjoining to the \infty-category of graphs the factorization homology of the universal E_\infty-Frobenius algebra over any sapce X.

Seminar med Professor Urban Eriksson og Ebba Koerfer, ph.d.-studerende

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

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

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

FNUG Research Seminar