The world needs better cyber security, more so now than ever because of the current threat posed by future quantum computers. A wealth of new techniques are emerging to meet the diverse needs of users. However, to fully appreciate the emerging competitive dynamics and government actions in this sector, we also have to understand the long-term technological revolution that many believe will one day lead to the creation of the Quantum Internet.
Big ticket investments have created a growing number of quantum unicorns. Chinese strides with photonic and superconducting qubits have grabbed attention. Trapped ions have shone with demonstrations of logical qubits. But who is winning the race to build a practical quantum computer?