Demonstration of high-fidelity universal gates on a continuously noise-decoupled qubit
ORAL
Abstract
Spin-Locking noise-spectroscopy of quantum systems is a valuable tool in qubit environment characterization. Intriguingly, though, a spin-locked state is itself a continuously noise-decoupled qubit, albeit with a small self-energy. Such spin-locked qubits are insensitive to 1/f noise in the lab frame, and therefore show enhanced long-time frequency stability. The small self-energy, however, makes resonant Rabi driving unsuitable for high fidelity control. We present the implementation and characterization of universal single qubit gates performed on a spin-locked transmon using an alternative control approach.
*We gratefully acknowledge support from MIT Lincoln Laboratory and IARPA LogiQ program for qubits and measurement devices. Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of AFRL.Approved for Public Release; Distribution Unlimited. PA #: AFRL-2021-3361
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Presenters
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Michael Senatore
- Department of Physics, Syracuse University; United States Air Force Research Laboratory, Information Directorate, Rome NY 13441 USA
- Department of Physics, Syracuse University; United States Air Force Research Laboratory, Information Directorate