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This research demonstrates how stroboscopic Rydberg dressing can generate squeezed, non-classical states in neutral atom arrays to suppress distance fluctuations between particles. By reducing motional decoherence through these correlated many-body states, the method directly addresses gate infidelity issues inherent in quantum computing platforms dependent on interparticle interactions. Such advancements are critical for enhancing fidelity and enabling high-precision metrology within scalable atomic quantum processors.
Creating squeezed and non-classical collective motional many-body states through stroboscopic Rydberg dressing
arXiv:2606.17849v1 Announce Type: cross Abstract: Realizing conditional quantum operations, e.g., quantum gates, for quantum computing and simulation requires controlled interactions between particles. Often, these interactions depend on the interparticle distance, and accordingly, an uncertainty of the relative particle position may translate into gate infidelities. We consider here a quantum computing platform based on an array of neutral atoms and present a method that allows to reduce the uncertainty of all interatomic distances. Our approach exploits the coupling between atomic motion and stroboscopically excited atomic Rydberg states. It allows to collectively squeeze the modes corresponding to interatomic displacements, thereby reducing distance fluctuations down to a fraction of the motional vacuum state. Furthermore, the method permits the creation of non-classical states with substantial Wigner negativity. These correlated states may allow reducing motional decoherence, increasing gate fidelity, and potentially yield a resource for quantum-enhanced metrology.
Abstract:Realizing conditional quantum operations, e.g., quantum gates, for quantum computing and simulation requires controlled interactions between particles. Often, these interactions depend on the interparticle distance, and accordingly, an uncertainty of the relative particle position may translate into gate infidelities. We consider here a quantum computing platform based on an array of neutral atoms and present a method that allows to reduce the uncertainty of all interatomic distances. Our approach exploits the coupling between atomic motion and stroboscopically excited atomic Rydberg states. It allows to collectively squeeze the modes corresponding to interatomic displacements, thereby reducing distance fluctuations down to a fraction of the motional vacuum state. Furthermore, the method permits the creation of non-classical states with substantial Wigner negativity. These correlated states may allow reducing motional decoherence, increasing gate fidelity, and potentially yield a resource for quantum-enhanced metrology.
Atomic Physics (physics.atom-ph); Quantum Gases (cond-mat.quant-gas); Quantum Physics (quant-ph)
arXiv:2606.17849 [physics.atom-ph]
(or arXiv:2606.17849v1 [physics.atom-ph] for this version)
https://doi.org/10.48550/arXiv.2606.17849 Focus to learn more arXiv-issued DOI via DataCite (pending registration)
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