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arXiv · 2011.00015

Time-domain anyon interferometry in Kitaev honeycomb spin liquids and beyond

Kai Klocke·David Aasen·Roger S. K. Mong·Eugene A. Demler·Jason Alicea
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Abstract

Motivated by recent experiments on the Kitaev honeycomb magnet $α\text{-RuCl}_3$, we introduce time-domain probes of the edge and quasiparticle content of non-Abelian spin liquids. Our scheme exploits ancillary quantum spins that communicate via time-dependent tunneling of energy into and out of the spin liquid's chiral Majorana edge state. We show that the ancillary-spin dynamics reveals the edge-state velocity and, in suitable geometries, detects individual non-Abelian anyons and emergent fermions via a time-domain counterpart of quantum-Hall anyon interferometry. We anticipate applications to a wide variety of topological phases in solid-state and cold-atoms settings.

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Kai Klocke, David Aasen, Roger S. K. Mong, Eugene A. Demler, Jason Alicea. 2020-10-30. Time-domain anyon interferometry in Kitaev honeycomb spin liquids and beyond. https://doi.org/10.1103/physrevlett.126.177204

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