Asynchronous quantum information processing

A method comprising:

• generating a set of quantum programs;
• dispatching at least some of the set of quantum programs to multiple quantum information processing units (QIPU) for execution;
• asynchronously receiving results generated by the multiple QIPUs in a streaming or batched fashion;
• performing single or multithreaded generation of a new set of quantum programs based on the returned results;
• and
• dispatching at least some of the new set of quantum programs to the multiple QIPUs for execution.

A quantum processing system comprising:

• one or more controllers configured to:
• calculate a series of initial parameter sets for a quantum program;
• dispatch the quantum program with the series of initial parameter sets to a quantum processing queue;
• receive a first expectation value corresponding to the quantum program with parameters of a first initial parameter set;
• compute a next parameter set based on the first initial parameter set and first expectation value;
• and
• dispatch the next parameter set to the quantum processing queue;
• and
• a quantum information processing unit (QIPU) configured to:
• evaluate the first expectation value for the quantum program with parameters of the first initial parameter set;
• broadcast the first expectation value to the one or more controllers;
• while the next parameter set is being computed, evaluate a second expectation value for the quantum program with parameters of a second initial parameter set;
• receive the next parameter set;
• and
• evaluate a next expectation value for the quantum program with parameters of the next parameter set.