Practical Product Proofs for Lattice Commitments
Thomas Attema, Vadim Lyubashevsky, et al.
CRYPTO 2020
The ability to generate and verify multipartite entanglement is an important benchmark for near-term quantum devices. We develop a scalable entanglement metric based on multiple quantum coherences and demonstrate experimentally on a 20-qubit superconducting device. We report a state fidelity of 0.5165±0.0036 for an 18-qubit GHZ state, indicating multipartite entanglement across all 18 qubits. Our entanglement metric is robust to noise and only requires measuring the population in the ground state; it can be readily applied to other quantum devices to verify multipartite entanglement.
Thomas Attema, Vadim Lyubashevsky, et al.
CRYPTO 2020
Youngseok Kim, Chris Wood, et al.
ACS Fall 2022
Etsuki Kobiyama, Gabriele Rainò, et al.
MRS Fall Meeting 2022
Ivan Nekrashevich, Geev Nahal, et al.
APS March Meeting 2024