Sigurd Storgaard, PhD student
From 1 August 2023, Sigurd Storgaard is employed as a PhD student at the department’s section for Analysis & Quantum affiliated with the QMATH Centre. Laura Mančinska will be his supervisor.
Sigurd is Danish and obtained both his bachelor's and master's degrees in mathematics from the University of Copenhagen. He also has a bachelor's degree in physics from UCPH.
Sigurd’s PhD project is about self-testing which provides a framework for studying quantum mechanical descriptions of devices based only on classical interaction.
- One aim is to develop a versatile framework of self-testing based on representation theory, Sigurd explains.
Oftentimes self-testing can be proved for a probability distribution whenever it constitutes a maximum violation of a Bell inequality. A convenient recasting of a Bell inequality is a so-called non-local game. Recently it has been discovered that sometimes self-testing statements can be based on group representation theory. Even though the group Framework would encompass a large class of nonlocal games, it is not expected that every game will have an underlying group structure and even if present, it is not always easy to identify the relevant group. In fact, algebras are more naturally associated with optimal strategies for nonlocal games. A next step would therefore be to extend the group framework to a similar algebra framework.
You can find Sigurd at Vibenshuset, Lyngbyvej 1.