Highlights
- Google’s Willow chip has achieved the world’s first verifiable quantum advantage, running the Quantum Echoes algorithm 13,000× faster than top classical supercomputers.
- The algorithm enables precise simulations of atomic interactions, with results validated by nuclear magnetic resonance experiments.
- Willow’s success signals a shift from theoretical quantum supremacy to practical, credible quantum computing.
Google has reached a major milestone in quantum computing. CEO Sundar Pichai announced that the company’s most powerful quantum processor yet – the Willow chip has achieved the world’s “first-ever verifiable quantum advantage.”
In a post on X (formerly Twitter), Pichai stated, “Our Willow chip has achieved the first-ever verifiable quantum advantage,” highlighting that it is “13,000x faster than the best classical algorithm on one of the world’s fastest supercomputers.”
New breakthrough quantum algorithm published in @Nature today: Our Willow chip has achieved the first-ever verifiable quantum advantage.
Willow ran the algorithm – which we’ve named Quantum Echoes – 13,000x faster than the best classical algorithm on one of the world’s fastest… pic.twitter.com/hTXl9s21Hh
— Sundar Pichai (@sundarpichai) October 22, 2025
The announcement quickly caught the attention of tech leaders with Tesla CEO Elon Musk responding, “Congrats. Looks like quantum computing is becoming relevant.”
Congrats. Looks like quantum computing is becoming relevant.
— Elon Musk (@elonmusk) October 22, 2025
A Major Leap for Quantum Research
Expanding on the announcement, Pichai detailed the breakthrough, writing, “New breakthrough quantum algorithm published in @Nature today: Our Willow chip has achieved the first-ever verifiable quantum advantage. Willow ran the algorithm – which we’ve named Quantum Echoes – 13,000x faster than the best classical algorithm on one of the world’s fastest supercomputers. This new algorithm can explain interactions between atoms in a molecule using nuclear magnetic resonance, paving a path towards potential future uses in drug discovery and materials science. And the result is verifiable, meaning its outcome can be repeated by other quantum computers or confirmed by experiments. This breakthrough is a significant step toward the first real-world application of quantum computing, and we’re excited to see where it leads.”
What Makes the Willow Chip Breakthrough Important?
This development marks a pivotal shift for quantum computing. For the first time, a quantum processor has not only performed a complex computation faster but also in a verifiable and reproducible way, outperforming one of the world’s top supercomputers by a factor of 13,000.
Google’s Willow chip executed an advanced algorithm known as Quantum Echoes (or OTOC, short for out-of-order time correlator), which enables scientists to study how information moves and behaves within quantum systems. This could apply to molecular structures, magnetic systems, and even simulations of black holes.
The term verifiable quantum advantage is what distinguishes this experiment from earlier claims of “quantum supremacy.” Previous demonstrations were often difficult to validate or were based on abstract, non-practical problems. In contrast, Google’s Quantum Echoes produces results that can be independently reproduced using other quantum systems, giving the achievement a strong scientific foundation.
While the 13,000× speedup is specific to this algorithm and does not imply universal superiority over classical computers, it highlights how combining powerful quantum hardware with optimised algorithms can yield dramatic speed improvements. It also shows major progress in reducing computation errors, improving qubit interconnectivity, and scaling the system for practical use.
Check out more about Quantum Echoes below –
From Theory to Practical Application
To demonstrate real-world relevance, Google worked with researchers from the University of California, Berkeley, applying the Quantum Echoes algorithm to molecular models containing 15 and 28 atoms. The simulations matched results from nuclear magnetic resonance (NMR) experiments and even uncovered insights that classical methods couldn’t fully capture.
Although these are relatively small molecular systems, they showcase the Willow chip’s ability to handle scientifically meaningful simulations that demand both precision and reproducibility.
This experiment highlights the powerful synergy between algorithm development and hardware design. The Willow chip successfully maintained coherence across 105 qubits, while the Quantum Echoes algorithm enabled the system to explore quantum phenomena with unprecedented clarity.
Together, these advances demonstrate how quantum computing is moving from theory to tangible, testable applications, offering new ways to tackle scientific problems that are beyond the reach of even the fastest classical supercomputers.
A Defining Moment for Quantum Computing
Google’s Willow chip and the Quantum Echoes algorithm together represent a concrete step toward making quantum computing not just faster, but also more reliable and scientifically verifiable.
This achievement underscores a broader shift as quantum computers are no longer just experimental curiosities but are beginning to show practical advantages in solving real-world problems. By uniting high-performance hardware, innovative algorithms, and independently verifiable results, Google’s latest experiment signals the start of a new era in quantum computing research, one grounded in both speed and credibility.
FAQs
Q1. What is Google’s Willow chip and why is it significant?
Answer. The Willow chip is Google’s most advanced quantum processor, which achieved the world’s first verifiable quantum advantage, running a complex algorithm 13,000× faster than a top classical supercomputer.
Q2. What is the Quantum Echoes algorithm used by Willow?
Answer. Quantum Echoes (also known as OTOC) is a breakthrough algorithm that helps scientists study atomic interactions and quantum information flow, with applications in drug discovery and materials science.
Q3. How does this differ from previous quantum computing claims?
Answer. Unlike earlier demonstrations of quantum supremacy, Google’s achievement is verifiable and reproducible, marking a shift toward practical, real-world quantum computing applications.