2–5 Sept 2025
Dept. of Physics and Astronomy - University of Bologna
Europe/Rome timezone

Quantum simulator preparation of W-States through many-body physics

2 Sept 2025, 10:00
25m
Aula Magna (Dept. of Physics and Astronomy - University of Bologna)

Aula Magna

Dept. of Physics and Astronomy - University of Bologna

Via Irnerio 46 - 40126 Bologna, Italy
Talk (25 min) Talks

Speaker

Prof. Fabio Franchini (Rudjer Boskovic Institute)

Description

W-states are quantum states possessing both bipartite and multipartite entanglement and are necessary for several relevant quantum algorithms. We propose a protocol to generate them with an arbitrary number of qubits on a Rydberg atoms platform, by exploiting ring (topological) frustration. To validate our state preparation, we develop a new Bayesian state tomography approach that leverage on accurate classical numerical simulations. In this way we prove high fidelities experimentally (up to 11 qubits) and numerically argue about promising scaling for tens of qubits. With this work, not only do we reach an unparalleled accuracy for the generation of these states compared to the existing approaches, but we also show once more how physics principles can overcome traditional barriers and be exploited toward quantum advantage.

Author

Prof. Fabio Franchini (Rudjer Boskovic Institute)

Presentation materials