Yes, Google has been actively involved in the development of quantum computers. In 2019, Google made headlines with its announcement of achieving quantum supremacy, which refers to the point at which a quantum computer can perform a calculation that is beyond the reach of the most powerful classical supercomputers.
Google's quantum computing efforts are centered around a system called Sycamore, which is a programmable quantum processor. Sycamore consists of a two-dimensional array of qubits that are controlled and manipulated to perform quantum computations. It operates at extremely low temperatures near absolute zero to maintain the delicate quantum states of the qubits.
Google's achievement of quantum supremacy was demonstrated by solving a specific problem that would take a classical supercomputer an impractically long time to solve. While this milestone showcased the potential of quantum computing, it's important to note that the specific problem solved may not have direct real-world applications.
Since then, Google has been continuing its research and development efforts to improve the performance, stability, and scalability of quantum computers. They are exploring various applications for quantum computing, collaborating with researchers, and working on developing error correction techniques to mitigate the effects of noise and errors inherent in quantum systems.
While Google's quantum computing efforts are significant, it's worth mentioning that there are other companies, research institutions, and organizations worldwide actively involved in quantum computing research and development, contributing to the advancement of this field.