Heisenberg-limited calibration of entangling gates with robust phase
estimation
Heisenberg-limited calibration of entangling gates with robust phase
estimation
The calibration of high-quality two-qubit entangling gates is an essential component in engineering large-scale, fault-tolerant quantum computers. However, many standard calibration techniques are based on randomized circuits that are only quadratically sensitive to calibration errors. As a result, these approaches are inefficient, requiring many experimental shots to achieve acceptable performance. …