About
SYRTE (Systemes de Reference Temps-Espace), based at the Observatoire de Paris, is France's national time and frequency metrology laboratory and one of the world's leading centres for quantum-based timing and navigation standards. It operates France's primary atomic time standard, which contributes to International Atomic Time (TAI), and develops next-generation optical atomic clocks based on strontium and mercury lattice systems. SYRTE's optical lattice clocks have achieved fractional uncertainties below 4x10-17, placing them among the world's most accurate timekeepers. The laboratory has pioneered cold-atom interferometry for quantum inertial sensing, developing matter-wave gravimeters and gyroscopes for geodesy, tests of general relativity, and long-term navigation systems. This atom interferometry work has direct applications in quantum-enhanced gravimeters for underground mapping, seismology, and submarine navigation. SYRTE is a key partner in France's 1.8 billion euro Plan Quantique and participates in European quantum sensing networks through EURAMET and the EU Quantum Flagship sensing projects. It collaborates with NIST, PTB, NPL, and other national metrology institutes on optical clock comparison and quantum metrology standardisation. SYRTE also contributes to the anticipated redefinition of the SI second based on optical atomic transitions, which will replace the current microwave caesium standard.
Quantum Specifications
| Quantum Focus | hardware |