Bowers, C.
, Palani, D.
, Barta, J.
, Guglielmo, T.
, Libby, S.
, Leibfried, D.
and Slichter, D.
(2025),
Robust Two-Qubit Geometric Phase Gates using Amplitude and Frequency Ramping, arXiv
(Accessed February 21, 2026)
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Robust Two-Qubit Geometric Phase Gates using Amplitude and Frequency Ramping
Published
Author(s)
, , , Tyler Guglielmo, Stephen Libby, ,
Abstract
We demonstrate a method for generating entanglement between trapped atomic ions based on adiabatically ramped state-dependent forces. By ramping both the amplitude of the state-dependent force and the motional mode frequencies, we realize an entangling operation that is robust to motional mode occupation and drifts in the mode frequencies. We measure Bell state fidelities above 0.99 across a broad range of ramp parameters and with motional occupations up to 10 phonons. This technique enables high-fidelity entangling operations without ground-state cooling, has a reduced calibration overhead, and is well suited for both quantum logic spectroscopy applications and scalable quantum computing architectures.Citation
arXiv
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Created November 18, 2025, Updated February 18, 2026