IQIM Postdoctoral and Graduate Student Seminar

Abstract: Digital quantum simulations and quantum error-correction protocols require the application of local gates. We demonstrate such local control in a Sr-88 tweezer array platform by locally shifting the qubit frequency using off-resonant light. This enables precise, highly parallel local Z rotations with low crosstalk. In combination with fast, recoil-free global X rotations, optimized via optimal-control techniques to minimize motional entanglement, this approach allows the local implementation of universal single-qubit gates at rates exceeding 20 kHz. Together with two-qubit operations based on strong Rydberg blockade, we can realize a universal quantum gate set. Equipped with qubit shuttling, our platform opens an exciting frontier for quantum computing, digital quantum simulation, and quantum metrology.

Following the talk, lunch will be provided on the lawn outside East Bridge.