2. Introduction to geqo

In the following sections, all features of geqo are presented and small examples are shown for how to use the features.

• Quick Start: This section contains two small examples for a quick start.

• Unitary gates: All build-in unitary basic gates are explained, i.e. these gates are not decomposed into other gates internally.

• Additional unitary gates: More complex unitary gates, which are decomposed internally into sequences of other gates.

• Non-Unitary operations: Explanation of operations like measurements or setting qubits.

• Sequences and Controls: Basic constructions of circuits and controlled operations.

• Simulators: All build-in simulators are presented and it shown how to simulate quantum circuits and how to get the results.

• Conversion to OpenQASM3: In this section, the conversion of circuits defined in geqo to OpenQASM3 is demonstrated.

• Visualisation of quantum circuits: Explanation of Matplotlib and Latex backends to create circuit diagrams.