Editor’s note: Today, we’re announcing research that shows — for the first time in history — that a quantum computer can successfully run a verifiable algorithm on hardware, surpassing even the fastest classical supercomputers (13,000x faster). It can compute the structure of a molecule, and paves a path towards real-world applications. Today’s advance builds on decades of work, and six years of major breakthroughs. Back in 2019, we demonstrated that a quantum computer could solve a problem that would take the fastest classical supercomputer thousands of years. Then, late last year (2024), our new Willow quantum chip showed how to dramatically suppress errors, solving a major issue that challenged scientists for nearly 30 years. Today’s breakthrough moves us much closer to quantum computers that can drive major discoveries in areas like medicine and materials science.
Imagine you’re trying to find a lost ship at the bottom of the ocean. Sonar technology might give you a blurry shape and tell you, “There’s a shipwreck down there.” But what if you could not only find the ship but also read the nameplate on its hull?
That’s the kind of unprecedented precision we’ve just achieved with our Willow quantum chip. Today, we’re announcing a major algorithmic breakthrough that marks a significant step towards a first real-world application. Just published in Nature, we have demonstrated the first-ever verifiable quantum advantage running the out-of-order time correlator (OTOC) algorithm, which we call Quantum Echoes.
"Google claims ‘quantum advantage’ again — but researchers are sceptical" by Elizabeth Gibney of @Nature https://t.co/mD54zWFEKE
— Charles W. Clark (@g8ge) October 23, 2025
Original @Google article, "Observation of constructive interference at the edge of quantum ergodicity," is at https://t.co/tY8MiIq4Sn @JointQuICS pic.twitter.com/nh26Z4QWzA