Bulletin of the American Physical Society
55th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Monday–Friday, June 3–7, 2024; Fort Worth, Texas
Session S00: Poster Session III (4pm-6pm CDT)
4:00 PM,
Thursday, June 6, 2024
Room: Hall BC
Abstract: S00.00109 : Microscopic parton construction of Rydberg quantum spin liquid*
Presenter:
Michael Fleischhauer
(University of Kaiserslautern-Landau)
Authors:
Michael Fleischhauer
(University of Kaiserslautern-Landau)
Simon Ohler
(University of Kaiserslautern-Landau)
Benno Bock
(University Kaiserslautern-Landau)
Recently, the existence of a QSL state has been investigated numerically in a system of Rydberg atoms on a honeycomb lattice featuring density-dependent Peierls phases [2]. Later investigations using projective symmetry group arguments [3] confirmed the state to be a chiral spin liquid by comparing ground-states of ansatz Hamiltonians with exact diagonalization results. In this work, we take a different approach, deriving explicitly the mean-field parton Hamiltonian starting from the microscopic Rydberg model. A subsequent variational ansatz yields a more accurate representation of the true Rydberg many-body state.
[1] Semeghini et al., Science 374 (2021)
[2] Ohler et al., Phys. Rev. Res. 5, 013157 (2023)
[3] Tarabunga et al. Phys. Rev. B 108, 075118 (2023)
*SFB/TR 185 funded by DFG project nr:277625399
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