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  • Letter
  • Open Access

Directional transport in Rydberg atom arrays via kinetic constraints and temporal modulation

Yupeng Wang1, Junjie Wang1,2, Aishik Panja1, Xinghan Wang1, and Qi-Yu Liang1,3

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Phys. Rev. Research 7, L022035 – Published 15 May, 2025

DOI: https://doi.org/10.1103/PhysRevResearch.7.L022035

Abstract

We propose an experimentally feasible scheme to achieve directional transport of Rydberg excitations and entangled states in atomic arrays with unequal spacings. By leveraging distance-dependent Rydberg-Rydberg interactions and temporally modulated laser detunings, our method directs excitation flow without requiring local addressing. Numerical simulations demonstrate robust and coherent transport under experimentally realistic conditions. Additionally, we show that this scheme enables controlled transport of Bell pairs and preserves entanglement during propagation. The approach provides a versatile platform for programmable directional transport, with potential applications in quantum simulation, entanglement distribution, and the design of scalable quantum processors and networks.

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Phys. Rev. Research 7, L022035– Published 15 May, 2025
  • Received 17 February 2025
  • Accepted 25 April 2025
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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