Hi there! I am a postdoctoral fellow in the CMT group at the Paul Scherrer Institute in Villigen, Switzerland. I am also associated with the group of Prof. Titus Neupert at the University of Zürich, Switzerland. You can read more about my research in my profile.

On this website I have collected the research work of myself and of my students. In the “miscellaneous” tab I have collected various further documents, including recorded talks, slides, and code.

News! Following my successful application for a Starting Grant by SNSF, I will be launching a research group at the University of Zürich in October 2023. For that occassion I am hiring two doctoral students and one postdoc (application deadlines on 18 Feb 2023 resp. on 3 March 2023). The hiring announcements can be accessed on the University website. You can follow our updates on Twitter. Interested applicants for a bachelor or a master thesis project are welcome to ask me about possible projects already now.

Latest Posts

Simulating hyperbolic space on a circuit board
Curved spaces are usually associated with high-energy physics and cosmology. However, through the possibility of tabletop experiments emulating curved spaces and the interest in related synthetic matter, they have become relevant in condensed matter physics as well.
Last updated on Aug 12, 2022 1 min read
Simulating hyperbolic space on a circuit board
Theorists discover new paradigm of topological band structures
After the experimental discovery of topological insulators, the notion of what actually constitutes a topological band insulator has been refined in many ways. In their recent work, Aleksandra Nelson, Titus Neupert, Tomáš Bzdušek and Aris Alexandradinata extend the paradigm of topological insulators to areas which were previously thought to contain only trivial insulators.
Last updated on Aug 12, 2022 2 min read
Theorists discover new paradigm of topological band structures
Non-Abelian topology reveals a relation between triple points and nodal links
Electron band structures, which describe the energy-momentum relation for electrons in solids, can exhibit robust crossings called "nodes". Such nodes famously occur in graphene or in Weyl semimetals, and often facilitate special transport phenomena, such as the decrease of resistivity of Weyl semimetals in applied parallel magnetic field.
Last updated on Jun 7, 2021 2 min read
Non-Abelian topology reveals a relation between triple points and nodal links

Latest Publications

Hyperbolic matter in electrical circuits with tunable complex phases
We introduce and experimentally realize hyperbolic matter as a novel paradigm for topological states, made of particles moving in the …
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Hyperbolic matter in electrical circuits with tunable complex phases
Hyperbolic topological band insulators
Recently, hyperbolic lattices that tile the negatively curved hyperbolic plane emerged as a new paradigm of synthetic matter, and their …
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Hyperbolic topological band insulators
Flat bands and band touching from real-space topology in hyperbolic lattices
Motivated by the recent experimental realizations of hyperbolic lattices in circuit quantum electrodynamics and in classical …
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Flat bands and band touching from real-space topology in hyperbolic lattices
Symmetry breaking and spectral structure of the interacting Hatano-Nelson model
We study the Hatano-Nelson model, i.e., a one-dimensional non-Hermitian chain of spinless fermions with nearest-neighbor nonreciprocal …
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Symmetry breaking and spectral structure of the interacting Hatano-Nelson model
Triple nodal points characterized by their nodal-line structure in all magnetic space groups
We analyze triply degenerate nodal points [or triple points (TPs) for short] in energy bands of crystalline solids. Specifically, we …
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Triple nodal points characterized by their nodal-line structure in all magnetic space groups
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