Ion Qubit Control in a Passively Phase-Stable Optical Standing Wave

Vasquez, Alfredo Ricci; Mordini, Carmelo; Zhang, Chi; Malinowski, Maciej; Kienzler, Daniel; Mehta, Karan K.; Home, Jonathan

doi:10.1364/qim.2021.f2b.6

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Multi-qubit Gates Using Integrated Photonics1

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2023

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“…Figure 2 shows data for Rabi frequencies of various components as a function of the ion positions sampled over one standing wave period. 16 ∆M J = ±1 transitions have highest Rabi frequency at positions of high intensity, while ∆M J = 0 transitions are maximally driven at positions of minimal intensity. Motional sideband transitions (which are used for trapped-ion quantum gates) are driven at positions where the Rabi frequency has its greatest gradient.…”

Section: Multi-qubit Gates Using Integrated Photonicsmentioning

confidence: 92%

Ion trap quantum computing using integrated photonics

Mehta

Ricci-Vasquez

Mordini

et al. 2023

Integrated Optics: Devices, Materials, and Technologies XXVII

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Atomic ions controlled by laser light are among the leading candidates for large scale quantum computing. However operational systems today require vast scaling to reach levels capable of useful computational tasks. The integration of light delivery will be an essential component of this for the trapped-ion approach. I will describe results in which the use of photonics integrated into ion trap chips has allowed us to perform high fidelity two-qubit gates, which are an essential building block for quantum computers. These systems have now been extended to the operation of multiple trap zones, and the creation of novel optical fields for ion trap control while a new generation of chips allowing integration of all required wavelengths as well as optimised light delivery offers further enhancements in performance and scaling.

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Section: Multi-qubit Gates Using Integrated Photonicsmentioning

confidence: 92%