Institut for Matematik og Datalogi

Kageklubben er et nyt og hyggeligt initiativ, der samles fire gange hvert semester med gratis kaffe, kage og godt fællesskab.Så uanset om du studerer AI, Anvendt Matematik, Datalogi, Matematik eller Matematik-Økonomi, er du inviteret.Huske at tage dine studiekammerater med (undervisere er også velkomne).Klubmøderne holdes på IMADA Forskertorv.Læs evt. mere på Facebook-gruppen IMADA-students.

Speaker: Ben Brown (IBM).Abstract: In order to scale a quantum computer to solve difficult problems, not only do we need to produce a quantum memory that protect quantum information from noise, but we also need to perform logical operations (logic gates) to manipulate the protected states. Like the memory, these logic gates must also protect their encoded quantum information as gates are performed. A number of the major breakthroughs in the field of error-corrected logic gates have been made through building connections between quantum error-correcting codes and topological phases of matter. Indeed, the surface code is central to this connection, and this model has captured the imagination of the entire error-correction community. In this talk I will explain how error-corrected logic is performed with the surface code by introducing lattice dislocations with behaviour that is analogous to anyonic quasiparticle excitations known as Majorana fermions. I will also explain how we can use transformations between different topological phases of matter via gauging operations to create magic states; an essential component in a logic gate set. I will mention experimental progress towards the realisations of these gates, and I will look ahead to describe how these ideas are being adapted for quantum computing architectures with long-range interactions, that can potentially minimise the high resource cost of building a practical quantum computer.

Poster Session og oplæg ved Prajakt Pande, Lektor, Aarhus Universitet

Speaker: Steffen Schmidt (University of Southern Denmark).Abstract: Symmetry serves as a guiding principle in mathematics and physics. The language of symmetry groups and their actionsorganizes a wide range of phenomena. In this setting, Dirac operators form a natural bridge between quantum mechanics, geometry, and representation theory. In representation theory, Dirac operators provide conceptual and computational tools for addressing basic problems concerning a (semisimple) Lie group: they furnish explicit constructions, give effective criteria for unitarity, contribute to classification results, and relate the topology of locally symmetric spaces to representation-theoretic data. A foundational instance is Parthasarathy's use of a representation-theoretic Dirac operator in the study of discrete series representations. Interest in this circle of ideas intensified in the late 1990s, following Kostant's introduction of the cubic Dirac operator and the subsequent development of \emph{Dirac cohomology}, including Huang–Pandžić’s proofof Vogan's conjecture. In this talk, I present a modern construction of (algebraic) Dirac operators and discuss applications of Dirac operators and Dirac cohomology to representations of Lie superalgebras, including localization principles, relations with Duflo–Serganova cohomology, and character formulas.

Kageklubben er et nyt og hyggeligt initiativ, der samles fire gange hvert semester med gratis kaffe, kage og godt fællesskab.Så uanset om du studerer AI, Anvendt Matematik, Datalogi, Matematik eller Matematik-Økonomi, er du inviteret.Huske at tage dine studiekammerater med (undervisere er også velkomne).Klubmøderne holdes på IMADA Forskertorv.Læs evt. mere på Facebook-gruppen IMADA-students.

Abdullah Akgül forsvarer sin ph.d.-afhandling ved et offentligt foredrag: “Probabilistic Reinforcement Learning for Sample-Efficient Control”.Professor Arthur Zimek vil være ordstyrer ved arrangementet. Ph.d.-forsvaret finder sted i U181 (Ø22-601b-2).Alle er velkomne.

Speaker: Thomas Klein Kvorning (​KTH Royal Institute of Technology). Abstract: Simulating quantum many-body systems is fundamentally challenging because quantum states encode correlations that cannot be decomposed into local parts, leading to an exponential growth of required resources with system size. Yet physical observables are typically local: they are fully determined by density matrices of small subsystems. This raises a central question: can local density matrices be time-evolved without explicitly tracking long-range correlations? In this talk, I address this question using the framework of the information lattice, a scale-resolved decomposition of the information content of a quantum state. This construction provides a precise notion of where information resides in a quantum system, both in space and across length scales, and thereby offers a diagnostic of how correlations build up dynamically. I will show how this perspective reveals regimes in which local degrees of freedom are exactly decoupled from long-range entanglement, as well as how it can guide the development of approximate numerical methods for ab initio simulation of condensed matter systems.

Hvordan bruger SDU-studerende AI-chatbots som personlige læringsværktøjer – og hvordan kan undervisere i naturfag guide studerende til en meningsfuld og fagligt relevant anvendelse?

Årets tema er FROM COGNITION TO CAPACITY: Foundations of Empowering Knowledge. Konferencen fokuserer på hvordan handlekraft opstår gennem viden, og hvordan denne handlekraft kan styrkes og understøttes gennem tværfagligt og tværsektorielt samarbejde.

Årets tema er FROM COGNITION TO CAPACITY: Foundations of Empowering Knowledge. Konferencen fokuserer på hvordan handlekraft opstår gennem viden, og hvordan denne handlekraft kan styrkes og understøttes gennem tværfagligt og tværsektorielt samarbejde.

Adelina conducted a teaching experiment using figure construction to make student reasoning explicit and support integrative understanding of metabolic pathways.

FNUG og NAFA inviterer til NiSE-webinar

Vi sætter punktum for studieåret på IMADA med jordbærkage, vin, vand, øl, snacks og masser af godt sommerhumør 😃! Alle IMADA-studerende og alle IMADA-ansatte er velkomne. Ingen tilmelding nødvendig – bare kom forbi!

Arrangementet afholdes på engelsk. Klik her for at gå til den engelske beskrivelse af arrangementet.