Speaker
Description
Almost 40 years after Feynman first predicted the need for quantum computers, John Preskill coined the term noisy intermediate-scale quantum (NISQ) computers to describe the current stage of development of quantum computers. The NISQ era is characterized by an increased number of qubits available as well as by a significant lack of precision in manipulating these. Therefore, suitable diagnosis tools that can identify and characterize dissipation and decoherence in NISQ computers are needed to improve these devices.
In this work, a protocol for the estimation of the time-dependent Liouvillian that describes the evolution of qubits under elementary pulses in a NISQ processor is proposed. Notably, this protocol can capture non-Markovian dynamics, marking a significant advantage over similar protocols for Liouvillian estimation.
