Individual Addressing of Trapped Ions for Simulation of Coherent and Dissipative Dynamics

We report on our progress on a trapped-ion system based on a monolithic 3D blade Paul trap, capable of addressing individual ions for coherent and dissipative processes. Tunable dissipation will be realized by an array of beams generated by a multitone RF signal driving an AOM tuned for optical pumping in ¹⁷¹Yb⁺. Coherent control is implemented on the hyperfine and optical qubits, the former coupled to radial and the latter to axial modes of motion of the ions. To address the hyperfine qubit and the radial modes, stimulated Raman transitions are mediated by an array of beams, imaged onto the ions from a multi-channel AOM, which provides frequency, amplitude, and phase control. At the ion location, this array is combined with a global beam in the counterpropagating configuration. The optical qubit and the axial modes of motion will be coupled by radially delivered TEM₁₀ beams, generated by a spatial light modulator. This apparatus will enable us to simulate the effects of dissipation on the transfer of excitons in dimers, realize a minimal Frenkel-exciton model [1], dissipative quantum state engineering [2], and implement a light-shift gate with spatially modulated beam arrays controlled in phase and amplitude [3, 4].

 

[1] D. Fallas Padilla, et al., PRX QUANTUM 6, 040301 (2025)

[2] M. Zhu, et al., PRA 112, 012617 (2025)

[3] C. H. Baldwin, et al., PRA 103, 012603 (2021)

[4] A. D. West, et al., Quantum Sci. Technol. 6, 024003 (2021)