Cirq
Cirq is an open-source Python library developed by Google for creating, editing, and running quantum circuits on quantum computers and simulators. It provides a framework for designing quantum algorithms and experiments, with a focus on near-term quantum hardware like superconducting qubits. The library includes tools for circuit optimization, noise simulation, and integration with quantum hardware backends.
Developers should learn Cirq when working on quantum computing projects, especially for research, algorithm development, or applications targeting Google's quantum processors like Sycamore. It is ideal for tasks such as quantum machine learning, quantum chemistry simulations, or exploring Noisy Intermediate-Scale Quantum (NISQ) algorithms, as it offers fine-grained control over quantum operations and hardware constraints.