Variational Quantum Algorithms With the Quantum Orchestration Platform

Among the candidates that would showcase a near-term potential advantage over classical computing, Variational Quantum Algorithms (VQAs) do find a large interest in the research community, for they share in common the idea to exploit quantum information processing as a tool for computing difficult functions in the frame of a wider classical computation. Therefore, there is a dire need to build a unified framework for controlling quantum processors and running heavy classical processing. The simultaneous realization of those two features constitutes an essential requirement for running efficient hybrid classical-quantum algorithms.

We shall demonstrate that the Quantum Orchestration Platform (QOP), Quantum Machines’ quantum control stack, can constitute this central component, efficiently connecting classical and quantum resources. Moreover, the enabling of pulse control and tunability of the circuit scheduling could further extend the performance offered by NISQ hardware through a combination of Quantum Optimal Control (QOC) theory and VQAs, which can be seamlessly implemented through the use of the QOP specifically designed pulse-level programming language QUA.