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A sketch of the frequency-estimation protocol © 2025 EPFL Hybrid Quantum Circuits Laboratory

A new level of precision in quantum sensing

— A team of researchers at EPFL has achieved a breakthrough by showing how quantum phase transitions, sudden changes in the state of a quantum systems, can be used to dramatically enhance sensing precision. Their findings could pave the way for a new class of ultra-sensitive quantum sensors.

Chip with the couple cavity arrays (CCAs) wire bonded to a printed circuit board on top of a copper holder. 2025 EPFL/HQC - CC-BY-SA 4.0

Smaller, smarter building blocks for future quantum technology

— Scientists at EPFL have made a breakthrough in designing arrays of resonators, the basic components that power quantum technologies. This innovation could create smaller, more precise quantum devices.

© 2025 EPFL

Will 2025 be the year of quantum breakthroughs?

— The UN has declared 2025 as the “International Year of Quantum Science and Technology. EPFL is leading the way in cutting-edge quantum research and the democratization of these exciting technologies.

© 2025 EPFL

“Quantum Computing is not yet having its ChatGPT moment”

— Professor Thomas Vidick joined EPFL in late 2024. He works on problems at the interface of quantum information, theoretical computer science and cryptography.

© 2025 EPFL

Computational Quantum Science Lab at the APS Global Physics Summit

— At this year's APS Global Physics Summit in Anaheim, the Computational Quantum Science Lab showcased several contributions, spanning quantum dynamics, neural-network methodologies, topological quantum systems, and quantum chemistry. Eight among lab members and collaborators delivered presentations reflecting both theoretical ingenuity and practical advancements, offering insights into the lab’s innovative approach at the intersection of quantum computing and machine learning.

A gallium phosphide photonic chip featuring multiple spiral waveguides and other test structures. Credit: Nikolai Kuznetsov (EPFL)

Ultra-broadband photonic chip boosts optical signals

— Scientists at EPFL and IBM Research have developed a compact optical amplifier based on a photonic chip that vastly outperforms traditional optical amplifiers in both bandwidth and efficiency. This breakthrough could reshape data center interconnects, AI accelerators, and high-performance computing.

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