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Dr Guo Chuan Thiang
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I completed a DPhil in mathematics at the University of Oxford in December 2014 (conferred March 2016). Prior to this, I studied physics and mathematics at the National University of Singapore and the University of Cambridge.
I am currently an ARC postdoctoral research associate at the Institute for Geometry and its Applications, University of Adelaide, specialising in mathematical physics.
I was awarded a University of Adelaide Research Fellowship for 2018.
From 2017, I will be on an ARC DECRA Fellowship.
My research is focussed on the applications of topological K-theory, differential topology, operator algebras, and noncommutative geometry to the phenomena of topological phases of matter in condensed matter physics. My contributions include the rigorous analysis and clarification of the general classification problem for topological insulating phases, and more recently, the classification of topological semimetal phases.
I am also interested in the mathematical structures underlying T-duality and the analysis of D-branes in string theory, and finding their analogues in the condensed matter setting. For instance, I introduced the notion of T-duality of topological insulators in a paper with V. Mathai. Together with K. Hannabuss, we demonstrated the conceptual and computational utility of T-duality in simplifying and providing geometric intuition for bulk-boundary correspondence for topological insulators.
I am currently investigating the global topology of semimetallic band structures through techniques in generalised degree theory. These have the potential to realise exotic topologically stable fermions which are characterised by subtle topological invariants. In particular, there are intriguing links between semimetal topology, and Seiberg-Witten invariants and torsions of manifolds.
I am also interested in the possibility of using K-theoretic and T-duality techniques to study bosonic analogues of topological insulators, and its string theory implications.
Previously, I dabbled in algebraic quantum field theory, and was a researcher in quantum information theory at the Centre for Quantum Technologies, National University of Singapore.
I am organising a conference on mathematical topics at the interface of string theory, condensed matter physics, K-theory, operator algebras, and geometry. [Website]
I am co-organising the Australia-China conference in noncommutative geometry and related areas in December 2017. [Website]
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