Anyonic phase transitions in the 1D extended Hubbard model with fractional statistics

ORAL

Abstract

Recent advances in quantum technology allow the realization of "lattice anyons", which have enjoyed large interest as particles which interpolate between bosonic and fermionic behavior. We now study the interplay of such fractional statistics with strong correlations in the one-dimensional extended Anyon Hubbard model at unit filling by developing a tailored bosonization theory and employing large-scale numerical simulations. The resulting quantum phase diagram shows several distinct phases, which show an interesting transition through a multicritical point. As the anyonic exchange phase is tuned from bosons to fermions, an intermediate coupling phase changes from Haldane insulator to a dimerized phase. Detailed results on the universality classes of the phase transitions are presented.

*We acknowledge support from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) via the research center TRR 185 OSCAR in Kaiserslautern and Bonn.

Publication: Preprint arXiv 2410.00089 (2024).

Presenters

  • Sebastian Eggert

    • University of Kaiserslautern-Landau

Authors

  • Sebastian Eggert

    • University of Kaiserslautern-Landau
  • Martin Bonkhoff

    • Theoretische Physik, Univ. Hamburg,
  • Kevin Jägering

    • University of Kaiserslautern-Landau
  • Shi-Jie Hu

    • Beijing Computational Science Research Center
  • Axel Pelster

    • University of Kaiserslautern-Landau
  • Imke Schneider

    • University of Kaiserslautern-Landau