Multi-Qubit Stabilizer Readout on a Dual-Species Rydberg Array

• URL: http://arxiv.org/abs/2605.10924v1
• Date: Mon, 11 May 2026 17:55:33 GMT
• Title: Multi-Qubit Stabilizer Readout on a Dual-Species Rydberg Array
• Abstract summary: We develop a dual-species Rydberg array of Na and Cs atoms trapped in co-localized 2D optical tweezer arrays.<n>We demonstrate non-destructive measurement of Pauli-Z stabilizers on four-qubit Cs plaquettes via a single global Rydberg pulse sequence.
• Score: 1.849314804104018
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: 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.

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