Abstract: Anyons are quasiparticles that obey exchange statistics distinct from those of fermions and bosons. Such particles can emerge in fractional quantum Hall (FQH) systems, providing a platform for exploring exotic topological phases of matter. In this talk, I will present our group’s recent efforts to investigate anyons in bilayer graphene-based van der Waals heterostructures. I will first briefly review the fractional quantum Hall phase space in bilayer graphene, which hosts a remarkably rich landscape of topological orders, including candidate non-Abelian states [1]. I will then give an overview of the interferometry experiments in our group, at both odd- and even-denominator filling factors, designed to probe the exchange statistics of Abelian and non-Abelian quasiparticles [2–4].

[1] R. Kumar, A. Haug, et al., Quarter- and half-filled quantum Hall states and their competing interactions in bilayer graphene, Nature Comm. (2025)

[2] J. Kim, H. Dev, et al., Aharonov–Bohm interference and statistical phase-jump evolution in fractional quantum Hall states in bilayer graphene, Nature Nano. (2024)

[3] J. Kim, H. Dev, et al., Aharonov-Bohm Interference in Even-Denominator Fractional Quantum Hall States, Nature (2026)

[4] J. Kim, A. Shaer, et al., Selective braiding of different anyons in the even-denominator fractional quantum Hall effect, arXiv:2603.11162 (2026)

Yuval Ronen joined the Condensed Matter Physics Department at the Weizmann Institute of Science as a Senior Scientist (Assistant Professor) in 2022, after completing postdoctoral work at Harvard University. He earned his Ph.D. from the Weizmann Institute in 2017 and his B.Sc. in Physics and Electrical Engineering from Tel Aviv University in 2009. His research focuses on strongly correlated electronic systems in van der Waals heterostructures, including the fractional quantum Hall effect and topological superconductivity. His group develops innovative quantum devices that use quantum interference to study emergent quasiparticles known as anyons, exploring their potential applications in quantum information.