Quantum computing and communication are emerging as key technologies for solving computationally hard problems and securing future information systems. Our research in Quantum Computing and Communication advances quantum computing and quantum algorithms for complex problem solving, with a focus on optimization for 6G networks. We explore Quantum Machine Learning (QML) for intelligent learning and decision-making in in high-dimensional and non-linear problem spaces, and develop Post-Quantum Cryptography (PQC) and Quantum Key Distribution (QKD) to enable quantum-safe and information-theoretically secure communication for future computing and networking infrastructures.