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High-Fidelity Entanglement and Detection of Alkaline-Earth Rydberg Atoms

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Demonstrates high-fidelity entanglement and detection in alkaline-earth Rydberg atoms, supporting practical neutral-atom architectures that can pair Rydberg interactions with clock-compatible internal-state structure.

Abstract

Trapped neutral atoms have become a prominent platform for quantum science, where entanglement fidelity records have been set using highly-excited Rydberg states. This work demonstrates controlled two-qubit entanglement and high-fidelity detection in alkaline-earth Rydberg atoms, opening a route to applications including quantum-enhanced optical clocks and alkaline-earth quantum computing architectures.

Key Findings

  • Experimental milestone for alkaline-earth neutral-atom entanglement performance.
  • Provides practical support for alkaline-earth-specific architecture pathways.

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