Year: 2026
Type: preprint
Abstract: We propose a scheme for mediating many simultaneous, fast entangling gates between pairs of polar molecules using Rydberg atoms. By using microwave drives, the dipolar interactions between Rydberg atoms are nullified. Using the freedom left in the microwave dressing parameters, the Rydberg van der Waals interactions are minimized and the Rydberg-molecule interaction is tuned into resonance, allowing for the mediation of a modified iSWAP gate between molecules. In the example of mediating gates between $\rm{{}^{23}Na {}^{133}Cs}$ molecules with $\rm {}^{133}Cs$ atoms, the gate is more than two orders of magnitude faster than an equivalent direct molecule-molecule gate. We model the decay of the dressed Rydberg states and the motion of the atom and molecules and obtain a leading-order estimate of the resulting gate infidelities. Finally, we show that by detecting the state of the Rydberg atom after a gate, a subset of gate errors can be converted into erasure errors and mitigated by post-selection or quantum error-correction.
Source: arXiv (Cornell University)
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G1397688968, G1543527024, Quantum-engineered precision measurements of simple atoms and molecules - what fundamental physics is hiding in the next decimal place?, G1938338418, G1965873410, G2127201742, Quantum Software Consortium, G2545343486, QLCI-CI: NSF Quantum Leap Challenge Institute for Robust Quantum Simulation, G3094313881, G420050720, G6319458750, G7436220671, Trapped-ions, electric fields, and optical tweezers: Ingredients for a novel quantum computer, G8729776176
OpenAlex ID: W7214334420