Curator's Take
AI Commentary
This article demonstrates that neutral‑atom processors can natively generate any two‑qubit gate by exploiting a single tunable XXZ interaction together with standard single‑qubit rotations, eliminating the need to decompose algorithms into a limited native set such as CZ or CNOT. By showing concrete Rydberg implementations of gates ranging from B and QFT to iSWAP and a continuous family interpolating between CZ and iSWAP, the work bridges a gap that has long constrained compilation efficiency on atom‑based hardware. The ability to switch instruction sets on the fly promises shallower circuits and reduced overhead for near‑term algorithms, though experimental realization will still hinge on precise control of anisotropy and microwave driving fidelity.
— Mark Eatherly
Summary
We propose a unified architecture for two-qubit gates in neutral-atom quantum processors which allows the implementation of the complete set of two-qubit gates. Our approach rests on a single resource that unlocks the entire gate set: an XXZ interaction with tunable anisotropy, combined only with single-qubit operations. We introduce a Rydberg-atom realization of the tunable XXZ interaction and combine it with optimally controlled global microwave pulses to implement the B, QFT, iSWAP, and $\sqrt{\mathrm{iSWAP}}$ gates, as well as a continuous gate family interpolating from CZ to iSWAP via the B gate. This work allows the implementation of any two-qubit gate natively in neutral-atom platforms, enabling flexible switching between instruction sets to reduce circuit depth and compilation overhead in quantum algorithm implementation.