Quantum Computing: Current activity in this research area includes advancements in building and scaling up quantum computers, improving error correction techniques, developing quantum algorithms for various applications such as cryptography, optimization, and simulation, and exploring new quantum computing architectures. Additionally, there is ongoing research aimed at improving the coherence and stability of qubits, as well as investigating the potential for quantum supremacy and quantum advantage in solving specific problems. Institutions and companies like IBM, Google, Microsoft, and universities around the world are actively involved in advancing the field of quantum computing.