Some Size and Structure Metrics for Quantum Software

Quantum software plays a critical role in exploiting the full potential of quantum computing systems. As a result, it is drawing increasing attention recently. As research in quantum programming reaches maturity with some active research products, software metrics researchers need to focus on this new paradigm to evaluate it rigorously and quantitatively. As the first step, this paper proposes some basic size and structure metrics for assessing the complexity of quantum software, which are specifically designed to quantify the quantum attributes in a quantum program. The proposed metrics can be used to measure the complexity of quantum software from different viewpoints.