Thermalization and criticality on an analogue-digital quantum simulator.

ABSTRACT: Understanding how interacting particles approach thermal equilibrium is a major challenge of quantum simulators^1,2. Unlocking the full potential of such systems towards this goal requires flexible initial state preparation, precise time evolution and extensive probes for final state characterization. Here we present a quantum simulator comprising 69 superconducting qubits that supports both universal quantum gates and high-fidelity analogue evolution, with performance beyond the reach of classical simulation in cross-entropy benchmarking experiments. This hybrid platform features more versatile measurement capabilities compared with analogue-only simulators, which we leverage here to reveal a coarsening-induced breakdown of Kibble-Zurek scaling predictions³ in the XY

SUBMITTER: Andersen TI 

PROVIDER: S-EPMC11798852 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature