TCEP-based synchronization as a scalable and precise solution for achieving subnanosecond timing accuracy in distributed quantum networks.
Precise time synchronization is a key challenge in building distributed quantum systems – and it plays a crucial role in secure communications, quantum computing, sensing, the foundations of future 6G networks and the quantum internet.
In the paper titled “TCEP-Based Synchronization for Practical Communication Network,”researchers from TU Dresden, IIT Dharwad, Fraunhofer Institute for Integrated Circuits (IIS), Division EAS and HTW Dresden developed a FPGA-based implementation of network synchronization which takes advantage of Time-Correlated Entangled Photons (TCEP) and achieves sub-nanosecond accuracy.
Key achievements:
This breakthrough may offer a timing backbone for next-generation technologies – enabling progress in ultra-reliable low-latency communication, distributed quantum computing, quantum-enhanced sensing and navigation. In addition the approach lays a foundation for forthcoming 6G networks and the quantum internet.
Read more here.
Citation: S. S. Nande et al., “TCEP-Based Synchronization for Practical Communication Network,” in IEEE Transactions on Quantum Engineering, vol. 6, pp. 1-12, 2025, Art no. 5100212, doi: 10.1109/TQE.2025.3595706.
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