Dynamical Anyon Generation in Kitaev Honeycomb Non-Abelian Spin Liquids

Liu, Yue; Slagle, Kevin; Burch, Kenneth S.; Alicea, Jason

doi:10.1103/physrevlett.129.037201

Dynamical Anyon Generation in Kitaev Honeycomb Non-Abelian Spin Liquids

Journal Article · Mon Jul 11 00:00:00 EDT 2022 · Physical Review Letters

DOI:https://doi.org/10.1103/physrevlett.129.037201· OSTI ID:1982828

^[1]; ^[1]; ^[2]; Alicea, Jason ^[1]

California Institute of Technology (CalTech), Pasadena, CA (United States)
Boston College, Chestnut Hill, MA (United States)

Relativistic Mott insulators known as “Kitaev materials” potentially realize spin liquids hosting non-Abelian anyons. Motivated by fault-tolerant quantum-computing applications in this setting, we introduce a dynamical anyon-generation protocol that exploits universal edge physics. The setup features holes in the spin liquid, which define energetically cheap locations for non-Abelian anyons, connected by a narrow bridge that can be tuned between spin liquid and topologically trivial phases. We show that modulating the bridge from trivial to spin liquid over intermediate time scales—quantified by analytics and extensive simulations—deposits non-Abelian anyons into the holes with O(1) probability. The required bridge manipulations can be implemented by integrating the Kitaev material into magnetic tunnel junction arrays that engender locally tunable exchange fields. Combined with existing readout strategies, our protocol reveals a path to topological qubit experiments in Kitaev materials at zero applied magnetic field.

View Accepted Manuscript (DOE)

Research Organization:: National Quantum Information Science (QIS) Research Centers (United States). The Quantum Science Center (QSC)

Sponsoring Organization:: Gordon and Betty Moore Foundation; US Army Research Office (ARO); US Office of Naval Research (ONR); USDOE Office of Science (SC)

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1982828

Journal Information:: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 3 Vol. 129; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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