An entangling Hubbard quasiparticle collider on a digital quantum processor
Researchers report a quasiparticle scattering experiment of the Fermi-Hubbard model on IBM's ibm_boston superconducting quantum processor. They collided a doublon and a holon in a half-filled chain of 21 lattice sites, encoded across 42 qubits. The work is framed as an entangling Hubbard quasiparticle collider.
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What this could mean
- 0–2 yearsPlausible
Within two years, this collider approach could be scaled to larger Hubbard systems, allowing quantum processors to simulate quasiparticle scattering beyond exact classical methods.
If gate fidelities improve and processors with more qubits become available, the same encoding and collision protocol could extend to longer chains or higher dimensions, reaching regimes where tensor network methods are not exact.
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