Google has unveiled its new quantum chip called Willow, aiming to reduce errors in calculations and bring quantum computing closer to creating a new generation of quantum computers with error correction capabilities. The chip was designed to tackle complex processes that are nearly impossible to calculate accurately on traditional computers due to a vast number of variations and relationships.
During testing, Willow successfully performed the Random Circuit Sampling (RCS) test in just five minutes. In comparison, a modern supercomputer would have taken septillion years to solve the same problem. The RCS test evaluates a quantum computer’s ability to solve problems related to processing random quantum circuits, which simulate intricate processes.
Willow is equipped with 105 qubits, the quantum equivalent of classic computer bits, capable of being in a state of “0” and “1” simultaneously due to superposition. The chip boasts longer excitation state holding times, five times more than previous Google chip models, highlighting its progress in quantum technology.
Google conducted research on Willow at its laboratory in Santa Barbara, specifically focused on quantum technologies. While Willow showcases remarkable features, developers stress that it is a stepping stone towards achieving a universal quantum computer and is currently only superior in a limited range of tasks compared to classical systems.
Although the RCS test demonstrates advantages in various aspects, Google Quantum AI’s project manager emphasizes that it has no direct real-world application. However, Willow has already been utilized to model intricate quantum systems, yielding new scientific insights. The project manager acknowledges that existing technologies are not limited by any means.