Tue December 2, 2025 4:00 pm
CUA Seminar: Nelson Darkwah-Oppong – Quantum metrology with optical-clock qubit arrays
Location:Harvard Ory Forum (301 A/B) in the Goel Building (60 Oxford)
Ten Minute Talk:"TBD" by
Anant Kale,
Harvard
Programmable neutral-atom arrays have emerged as a leading platform for quantum science experiments, ranging from quantum computing and simulation to metrology. In particular, arrays of alkaline-earth atoms offer optical-clock qubits with long coherence times, scalability to large qubit numbers, and tunable Rydberg-mediated interactions. These features provide an ideal setting for exploring how microscopic control and entanglement can improve the performance of optical atomic clocks beyond conventional limits.
This talk will cover two efforts in this area. First, I will present recent results from JILA demonstrating entanglement-enhanced optical-clock operation, including methods that address the reduced dynamic range of highly entangled states. Second, I will briefly introduce our new experiment under development at Caltech. Together, these efforts highlight the potential for programmable atom arrays to enable new capabilities at the intersection of precision measurement and quantum information processing.