estimating

Physics

A new protocol for estimating Hamiltonian parameters in superconducting quantum processors could improve accuracy

Overview of experiments and identification algorithms. (a) The time evolution under the target Hamiltonian h0 is implemented on part of a Google Sycamore chip (gray) using the pulse sequence shown in the center. (b) The expected values ​​of the canonical coordinates xm and pm of each qubit m over time are estimated from measurements with different ψn as input states.…