An integrated photonic engine for programmable atomic control

Scaled atomic qubit technologies require solutions for scalable optical control. We propose and demonstrate a reconfigurable architecture for multi-site control based on holography and integrated photonic circuitry. This integrated circuitry consists of arrays of fast thin-film-lithium-niobate modulators, with visible-spectrum transparency to enable the interrogation of important visible-wavelength transitions in leading atomic systems. Using a prototype sixteen-channel array, we demonstrate techniques for stabilizing temporal and cross-channel noise, for spectral modulation, and for spatially steering the power in each channel toward target atomic sites. We discuss the application of this platform to a homogeneous set of silicon-vacancy artificial atoms in diamond, extensions of this prototype system to current work on a 256-channel array, and future work towards implementing a fast coherent display for projecting individual control beams onto tens of thousands of atoms.