Google’s latest quantum processor, known as Willow, has helped scientists uncover a completely new state of matter, one that had until now only existed in theory. The achievement, made in collaboration with researchers from the Technical University of Munich and Princeton University, highlights just how far quantum computing has advanced in recent years.
Using Willow, the team was able to observe what is called a Floquet topologically ordered state. This unusual quantum state arises under constant rhythmic disturbances and cannot be explained by classical physics. By developing an advanced algorithm, researchers successfully tracked the behaviour of exotic particles predicted only on paper until now.
More powerful than supercomputers
The Willow chip has already attracted global attention for its astonishing power. In one recent test it solved a complex calculation in under five minutes, a task that would take today’s most advanced supercomputers around ten septillion years to complete. To put that into perspective, this is longer than the age of the universe.
With 105 qubits, the fundamental building blocks of quantum processors, Willow represents a significant leap forward. Crucially, the chip also tackles one of quantum computing’s biggest challenges, noise and error rates. Typically, as more qubits are added, the likelihood of errors grows. Willow, however, has demonstrated the ability to reduce errors as it scales, a breakthrough that could prove vital in building reliable quantum machines.
Built from the ground up
Willow was designed and built at Google’s state-of-the-art fabrication facility in Santa Barbara, one of only a handful of centres in the world dedicated entirely to quantum technology. Unlike traditional processors, which focus on adding ever more transistors, Willow’s advantage lies in the quality and stability of its qubits.
Engineers worked to refine key components such as qubit gates, resets, and readouts to operate in harmony. This meticulous approach has improved the stability of qubits, allowing them to hold information for longer periods and perform more accurate calculations.
What it means for science
The discovery of a new phase of matter using Willow not only expands our understanding of quantum physics but also opens the door to new applications. Quantum processors can now serve as laboratories for studying exotic states of matter that cannot be explored using traditional tools.
Some experts believe this could eventually lead to breakthroughs in materials science, new energy solutions, and advanced algorithms that are far beyond the reach of classical computers.
The results have also reignited interest in the many-worlds interpretation of quantum mechanics, which suggests that our universe may be just one among countless others. While the notion remains controversial, Willow’s feats provide a practical demonstration of quantum phenomena that appear to echo such theories.
Looking ahead
Despite its remarkable performance, Willow is still in the experimental stage. Researchers caution that while benchmarks show unprecedented power, the challenge now is to translate this into real-world applications.
Google says its goal is to achieve the first “useful, beyond-classical” computation, solving problems that conventional computers simply cannot. If successful, it could mark the beginning of a new technological era, where quantum machines reshape industries, science, and perhaps even our understanding of reality itself.
