Multi-Qubit Stabilizer Readout on a Dual-Species Rydberg Array
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arXiv
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| Main Authors: | , , , , , , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866914559367839744 |
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| author | Wang, Yu Cimmino, Ryan Wang, Kenneth Lopez, Santiago Li, Jeffrey Koh, Jin Ming Hallén, Jonathan N. Matthies, Anne Yao, Norman Y. Ni, Kang-Kuen |
| author_facet | Wang, Yu Cimmino, Ryan Wang, Kenneth Lopez, Santiago Li, Jeffrey Koh, Jin Ming Hallén, Jonathan N. Matthies, Anne Yao, Norman Y. Ni, Kang-Kuen |
| contents | The ability to locally control and measure subsets of ancilla qubits in an efficient and crosstalk-free manner is a key ingredient in quantum error correction (QEC). Dual-species neutral atom arrays offer an ideal implementation of these capabilities, enabling independent state preparation, manipulation, and detection on each species. In this work, we realize such a dual-species Rydberg array of Na and Cs atoms trapped in co-localized 2D optical tweezer arrays, using Na as an ancilla to measure stabilizers of surrounding Cs data qubits. We identify the finite interspecies Rydberg-Rydberg interaction strength as a practical obstacle to high-fidelity multi-body entanglement and show that, by tuning the Rabi frequency and the detuning of the Rydberg driving field, the resulting geometric phase error can be compensated. This yields a protocol for simultaneous, non-destructive, in situ stabilizer readout of multiple data qubits via global pulses alone. Using this protocol, we demonstrate non-destructive measurement of Pauli-Z stabilizers on four-qubit Cs plaquettes via a single global Rydberg pulse sequence. Our results demonstrate dual-species tweezer arrays as a promising route towards scalable QEC and open the door to new quantum control protocols leveraging both interspecies and intraspecies interactions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_10924 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Multi-Qubit Stabilizer Readout on a Dual-Species Rydberg Array Wang, Yu Cimmino, Ryan Wang, Kenneth Lopez, Santiago Li, Jeffrey Koh, Jin Ming Hallén, Jonathan N. Matthies, Anne Yao, Norman Y. Ni, Kang-Kuen Quantum Physics Atomic Physics The ability to locally control and measure subsets of ancilla qubits in an efficient and crosstalk-free manner is a key ingredient in quantum error correction (QEC). Dual-species neutral atom arrays offer an ideal implementation of these capabilities, enabling independent state preparation, manipulation, and detection on each species. In this work, we realize such a dual-species Rydberg array of Na and Cs atoms trapped in co-localized 2D optical tweezer arrays, using Na as an ancilla to measure stabilizers of surrounding Cs data qubits. We identify the finite interspecies Rydberg-Rydberg interaction strength as a practical obstacle to high-fidelity multi-body entanglement and show that, by tuning the Rabi frequency and the detuning of the Rydberg driving field, the resulting geometric phase error can be compensated. This yields a protocol for simultaneous, non-destructive, in situ stabilizer readout of multiple data qubits via global pulses alone. Using this protocol, we demonstrate non-destructive measurement of Pauli-Z stabilizers on four-qubit Cs plaquettes via a single global Rydberg pulse sequence. Our results demonstrate dual-species tweezer arrays as a promising route towards scalable QEC and open the door to new quantum control protocols leveraging both interspecies and intraspecies interactions. |
| title | Multi-Qubit Stabilizer Readout on a Dual-Species Rydberg Array |
| topic | Quantum Physics Atomic Physics |
| url | https://arxiv.org/abs/2605.10924 |