A mobile impurity binds to a pinned quasihole in a lattice fractional Chern insulator, and the binding-energy ratio gives a direct readout of the quasihole's fractional charge.
Realization of a Laughlin state of two rapidly rotating fermions
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abstract
We realize a Laughlin state of two rapidly rotating fermionic atoms in an optical tweezer. By utilizing a single atom and spin resolved imaging technique, we sample the Laughlin wavefunction, thereby revealing its distinctive features, including a vortex distribution in the relative motion, correlations in the particles' relative angle, and suppression of the inter-particle interactions. Our work lays the foundation for atom-by-atom assembly of fractional quantum Hall states in rotating atomic gases.
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Anyon-Impurity Bound States in Quantum-Engineered Fractional Chern Insulators
A mobile impurity binds to a pinned quasihole in a lattice fractional Chern insulator, and the binding-energy ratio gives a direct readout of the quasihole's fractional charge.