Preparing Greenberger-Horne-Zeilinger state on ground levels of neutral atoms

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Hauptverfasser: Jin, Zhu-yao, Jing, Jun
Format: Preprint
Veröffentlicht: 2025
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author Jin, Zhu-yao
Jing, Jun
author_facet Jin, Zhu-yao
Jing, Jun
contents We propose a scalable protocol in the Rydberg atomic system to generate the Greenberger-Horne-Zeilinger (GHZ) states, where the qubits are encoded on the hyperfine ground levels. Our system is featured with off-resonant driving fields rather than strong Rydberg interaction sufficient for blockade. Closely it can follow the desired nonadiabatic passage during the time evolution and avoid the unwanted transition by imposing the passage-dependent and fast-varying global phase, that serves as an error correction to the universal quantum control. In our protocol, an $N$-qubit GHZ state is prepared in $N-1$ steps, which is found to be robust against both environmental noise and systematic deviation. Our protocol therefore provides an avenue toward large-scale entanglement, which is essential for quantum information processing and computation based on neutral atoms.
format Preprint
id arxiv_https___arxiv_org_abs_2504_18074
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Preparing Greenberger-Horne-Zeilinger state on ground levels of neutral atoms
Jin, Zhu-yao
Jing, Jun
Quantum Physics
We propose a scalable protocol in the Rydberg atomic system to generate the Greenberger-Horne-Zeilinger (GHZ) states, where the qubits are encoded on the hyperfine ground levels. Our system is featured with off-resonant driving fields rather than strong Rydberg interaction sufficient for blockade. Closely it can follow the desired nonadiabatic passage during the time evolution and avoid the unwanted transition by imposing the passage-dependent and fast-varying global phase, that serves as an error correction to the universal quantum control. In our protocol, an $N$-qubit GHZ state is prepared in $N-1$ steps, which is found to be robust against both environmental noise and systematic deviation. Our protocol therefore provides an avenue toward large-scale entanglement, which is essential for quantum information processing and computation based on neutral atoms.
title Preparing Greenberger-Horne-Zeilinger state on ground levels of neutral atoms
topic Quantum Physics
url https://arxiv.org/abs/2504.18074