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Jul 13 – 15, 2022
Perimeter Institute for Theoretical Physics
America/Toronto timezone

Time-optimal gates for quantum computing with Rydberg atoms

Jul 15, 2022, 11:30 AM
20m
Theatre (Perimeter Institute for Theoretical Physics)

Theatre

Perimeter Institute for Theoretical Physics

Speaker

Guido Pupillo (University of Strasbourg)

Description

"Neutral atoms have emerged as a competitive platform for digital quantum simulations and computing.
In this talk, we discuss recent results on the design of time-optimal two- and three-qubit gates for neutral
atoms, where entangling gates are implemented via the strong and long-range interactions provided by
highly excited Rydberg states. We combine numerical and semi-analytical quantum optimal control
techniques to obtain theoretically laser pulses that are “smooth”, time-optimal and “global” -- that is,
they do not require individual addressability of the atoms. This technique improves upon current
implementations of the controlled-Z (CZ) and the three-qubit C2Z gates with just a limited set of
variational parameters, demonstrating the potential of quantum optimal control techniques for advancing quantum computing with Rydberg atoms."

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