STIRSAP technique accelerates quantum state transfer between metastable Ca⁺ states by >3×, eliminating first-order Doppler effects via three-photon resonance and counterdiabatic driving—without additional coupling fields.

STIRSAP technique accelerates quantum state transfer between metastable Ca⁺ states by >3×, eliminating first-order Doppler effects via three-photon resonance and counterdiabatic driving—without additional coupling fields.