• Open Access

Fusion mechanism for quasiparticles and topological quantum order in the lowest Landau level

Arkadiusz Bochniak and Gerardo Ortiz
Phys. Rev. B 108, 245123 – Published 8 December 2023

Abstract

Starting from Halperin multilayer systems we develop a hierarchical scheme, dubbed symmetrized multicluster construction, that generates bosonic and fermionic single-layer quantum Hall states (or vacua) of arbitrary filling factor. Our scheme allows for the insertion of quasiparticle excitations with either Abelian or non-Abelian statistics and quantum numbers that depend on the nature of the original vacuum. Most importantly, it reveals a fusion mechanism for quasielectrons and magnetoexcitons that generalizes ideas about particle fractionalization introduced in A. Bochniak, Z. Nussinov, A. Seidel, and G. Ortiz, Commun. Phys. 5, 171 (2022) for the case of Laughlin fluids. In addition, in the second quantization representation, we uncover the inherent topological quantum order (or the off-diagonal long-range order) characterizing these vacua. In particular, we illustrate the methodology by constructing generalized composite (generalized Read) operators for the non-Abelian Pfaffian and Hafnian quantum fluid states.

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  • Received 16 August 2023
  • Accepted 21 November 2023

DOI:https://doi.org/10.1103/PhysRevB.108.245123

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Open access publication funded by the Max Planck Society.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Arkadiusz Bochniak1,2,* and Gerardo Ortiz3,4,†

  • 1Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1, 85748 Garching, Germany
  • 2Munich Center for Quantum Science and Technology, Schellingstraße 4, 80799 München, Germany
  • 3Department of Physics, Indiana University, Bloomington, Indiana 47405, USA
  • 4Institute for Quantum Computing, University of Waterloo, Waterloo, N2L 3G1, ON, Canada

  • *arkadiusz.bochniak@mpq.mpg.de
  • ortizg@indiana.edu

Article Text

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Issue

Vol. 108, Iss. 24 — 15 December 2023

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