Speaker
Alexander Miessen
(IBM Quantum, IBM Research – Zurich; Institute for Computational Science, University of Zurich)
Description
We utilize known theoretical results about many-body quantum critical dynamics to benchmark quantum hardware and various error mitigation techniques on up to 133 qubits. In particular, we benchmark against known universal scaling laws in the Hamiltonian simulation of a time-dependent transverse-field Ising Hamiltonian. Incorporating basic error mitigation and suppression, our study shows coherent control up to a two-qubit gate depth of 28, featuring a maximum of 1396 two-qubit gates, before noise becomes prevalent. These results are transferable to applications such as digitized quantum annealing and match the results of a 133-site optimization, where we identify an optimal working point in terms of both circuit depth and time step.
Author
Alexander Miessen
(IBM Quantum, IBM Research – Zurich; Institute for Computational Science, University of Zurich)
Co-authors
Daniel Egger
(IBM Quantum, IBM Research – Zurich)
Ivano Tavernelli
(IBM Quantum, IBM Research – Zurich)
Prof.
Guglielmo Mazzola
(Institute for Computational Science, University of Zurich)
