{"id":140753,"date":"2025-10-23T09:18:00","date_gmt":"2025-10-23T13:18:00","guid":{"rendered":"http:\/\/kendallharmon.net\/?p=140753"},"modified":"2025-10-24T06:22:03","modified_gmt":"2025-10-24T10:22:03","slug":"google-blog-our-quantum-echoes-algorithm-is-a-big-step-toward-real-world-applications-for-quantum-computing","status":"publish","type":"post","link":"https:\/\/kendallharmon.net\/?p=140753","title":{"rendered":"(Google Blog) Our Quantum Echoes algorithm is a big step toward real-world applications for quantum computing"},"content":{"rendered":"\n

Editor\u2019s note:<\/strong> Today, we\u2019re announcing research that shows \u2014 for the first time in history \u2014 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\u2019s advance builds on decades of work, and six years of major breakthroughs. Back in 2019, we<\/em> demonstrated<\/em><\/a> 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<\/em> Willow quantum chip<\/em><\/a> showed how to dramatically suppress errors, solving a major issue that challenged scientists for nearly 30 years. Today\u2019s breakthrough moves us much closer to quantum computers that can drive major discoveries in areas like medicine and materials science.<\/em><\/p>\n\n\n\n

Imagine you\u2019re 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?<\/p>\n\n\n\n

That’s the kind of unprecedented precision we’ve just achieved with our Willow quantum chip. Today, we\u2019re announcing a major algorithmic breakthrough that marks a significant step towards a first real-world application. Just published in Nature<\/a>, we have demonstrated the first-ever verifiable quantum advantage<\/a> running the out-of-order time correlator (OTOC) algorithm, which we call Quantum Echoes.<\/p>\n\n\n\n

Read it all<\/a>.<\/p>

"Google claims \u2018quantum advantage\u2019 again \u2014 but researchers are sceptical" by Elizabeth Gibney of @Nature<\/a> https:\/\/t.co\/mD54zWFEKE<\/a>
Original @Google<\/a> article, "Observation of constructive interference at the edge of quantum ergodicity," is at https:\/\/t.co\/tY8MiIq4Sn<\/a> @JointQuICS<\/a> pic.twitter.com\/nh26Z4QWzA<\/a><\/p>— Charles W. Clark (@g8ge) October 23, 2025<\/a><\/blockquote>