Google says it has built a computer that is capable of solving problems that classical computers practically cannot. According to a report published in the scientific journal Nature, Google’s processor, Sycamore, performed a truly random-number generation in 200 seconds. That same task would take about 10,000 years for a state-of-the-art supercomputer to execute.
We are excited to announce the results of our quantum supremacy experiment. Using a fully programmable, 54-qubit processor, called “Sycamore”, we have performed a calculation in 200 seconds that’s infeasible on the fastest supercomputers. Learn more ↓ https://t.co/2qaiPap314
— Google AI (@GoogleAI) October 23, 2019
The achievement marks a major breakthrough in the technology world’s decadeslong quest to use quantum mechanics to solve computational problems. Google CEO Sundar Pichai wrote that the company started exploring the possibility of quantum computing in 2006.
In classical computers, bits can store information as either a 0 or a 1 in binary notation. Quantum computers use quantum bits, or qubits, which can be both 0 and 1. According to Google, the Sycamore processor uses 53 qubits, which allows for a drastic increase in speed compared with classical computers.
The report acknowledges that the processor’s practical applications are limited. Google says Sycamore can generate truly random numbers without utilizing pseudo-random formulas that classical computers use.
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Pichai called the success of Sycamore the “hello world” moment of quantum computing. “With this breakthrough we’re now one step closer to applying quantum computing to—for example—design more efficient batteries, create fertilizer using less energy, and figure out what molecules might make effective medicines,” Pichai wrote.