High-fidelity Raman spin-dependent kicks in the presence of micromotion
Abstract
We propose high-fidelity single-qubit spin-dependent kicks (SDKs) for trapped ions using nanosecond Raman pulses via amplitude modulation of a continuous-wave laser with a tunable beat frequency. We develop a general method for maintaining SDK performance in the presence of micromotion by identifying optimal choices of the RF phase and frequency that suppress unwanted backward kicks. The proposed scheme enables SDK infidelities as low as $10^{-9}$ in the absence of micromotion, and below $10^{-5}$ with micromotion. This study lays the foundation for the realization of sub-trap-period and high-fidelity two-qubit gates based on SDKs.
Fields of Study & Subjects
Quantum Information and Cryptography
Quantum optics and atomic interactions
Diamond and Carbon-based Materials Research
Publication details
- Journal / source
- Physical Review A
- Publisher
- American Physical Society (APS)
- Volume
- 113
- Issue
- 4
- Publication date
- 27 March 2026
- Language
- EN