Dr Magnus Borgh

PhD

Photographic portrait of Magnus Borgh

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Division: Mathematical Sciences
Organisation: University of East Anglia
Tags: Fellowship: Postdoctoral Fellowship, Researcher
Related theme: Physical Sciences

Biography

I obtained my PhD from Lund University in Sweden, and have previously held a Swedish Research Council Postdoctoral Stipend at University of Cambridge and a Leverhulme Early Career Fellowship at University of East Anglia.

My Fellowship

An EPSRC fellowship allows me to establish myself as an independent researcher with a focussed programme, and to strengthen my expertise in the theory of quantum gases, with particular focus on spinor Bose-Einstein condensates and non-equilibrium condensates of quasiparticles in solid-state systems. With the rapid experimental and theoretical development in these areas, now is a particularly interesting time for this research, illustrated not least by the rapidly growing potential for using ultracold atoms as model systems for highly complex physics. For example, vortices and other so-called topological defects in quantum gases can serve as analogues for objects that appear in high-energy physics or the cosmology of the early universe.

This research programme seeks to determine the properties of such defects in quantum gases of atoms that have internal degrees of freedom, leading to highly complex structures. We ask how their properties are affected by, for example, long-range interactions that lead to magnetic order, and by the presence of quantum fluctuations. Another aspect of the programme is to describe condensation and formation of defects and structures in a gas of exciton-polaritons. These light-matter hybrid particles exist in semiconductor devices. Semiconductors form the basis for electronics, and quasiparticle quantum gases represent a step towards integration of macroscopic quantum coherence. This could eventually lead, for example, to ultra-sensitive detectors.