Quantum Service-Oriented Computing: A Practical Introduction to Quantum Web Services and Quantum Workflows

Quantum applications are hybrid and require quantum and classical programs. Similar to classical applications, they can benefit from modularity, maintainability, and reusability. This can be achieved by implementing the different functionalities of quantum applications as independent web services. In this tutorial, we provide an overview of concepts to develop and execute quantum applications based on the paradigm of service-oriented computing. This includes the development of quantum web services and corresponding OpenAPI specifications. Further, these services are orchestrated using quantum workflows to achieve robustness, scalability, and reliability. Thereby, concepts and tools for their modeling, execution, and monitoring are introduced and practically applied.