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Quantum State Geometry Fidelity
Nonlinear Phase Gates Beyond the Lamb-Dicke Regime
arXiv
Authors: Akram Kasri, Kimin Park, Radim Filip
Year
2026
Paper ID
732
Status
Preprint
Abstract Read
~2 min
Abstract Words
73
Citations
N/A
Abstract
Nonlinear phase gates are essential to achieve the universality of continuous-variable quantum processing and its applications. We present a deterministic protocol for generating nonlinear phase gates in trapped ion systems using simultaneous two-tone sideband drives beyond the Lamb-Dicke regime. Our approach harnesses higher-order interaction terms typically neglected or suppressed to construct nonlinear phase gates. This methodology enables high-fidelity gate engineering with a near three-fold reduction in control pulses compared to state-of-the-art theoretical proposals.
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- This paper contributes to the Quantum State Geometry & Fidelity research area in the Quantum Articles archive.
- It adds a 2026 reference point for readers tracking recent quantum research.
- Nonlinear phase gates are essential to achieve the universality of continuous-variable quantum processing and its applications.
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