14.04.2026Event
Multiparty Entanglement Secure Clock Synchronisation: Redefining Global Time with Quantum Networks
What if the world’s most precise clocks could work together (securely and without giving up control) to outperform any single time standard?
In this webinar, we explore how quantum networks make this possible. Today’s leading optical clocks, such as those maintained at National Institute of Standards and Technology and Physikalisch-Technische Bundesanstalt, already achieve extraordinary precision at the 10⁻¹⁹ level. Improving beyond this typically means building even more complex and costly systems, or relying on a central reference clock.
Quantum networking offers a different approach.
By distributing special shared quantum states (GHZ states) between multiple clock providers, geographically separated clocks can operate as a coordinated network. Together, they produce a shared time signal that is more accurate and more stable than any individual clock. Crucially, each provider keeps full control of its own system, and no one needs to reveal their local measurement data. Only the final shared result is accessible.
This session led by Sorbonne University Researcher Naomi Solomons will explain the core idea in clear terms, outline how we guarantee privacy in quantum systems, and discuss technical requirements towards enabling a global, cooperative world clock!
Participation is free, but registration is required and places are limited.
Organised by the Quantum Internet Alliance (QIA), this webinar is part of the ongoing series on quantum internet use cases. Register early to secure your spot.
About the Speaker
Naomi Solomons
Naomi Solomons is a researcher at Sorbonne University’s LIP6 (Computer Lab of Paris 6) Quantum Information Team working on the QIA project, focused on the use cases of quantum networks, particularly secure delegated quantum sensing (i.e. how can a network calculate the mean of their individual values while ensuring the secrecy of each value?). She is interested in a wide variety of other topics too, like complexity theory, photonic quantum computing, and contextuality.
Prior to joining LIP6, she carried out a PhD on the uses of Gaussian boson sampling for graph theory, at the University of Bristol, and worked with the start-ups Riverlane and Duality Quantum Photonics. She enjoys taking part in science communication and outreach projects.
