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    "headline": "Four On-Chip Sensors Beat the Shot-Noise Limit",
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    "dek": "An integrated circuit measured four distributed phases with 0.199 dB of entanglement-enhanced precision.",
    "summary": "An integrated circuit measured four distributed phases with 0.199 dB of entanglement-enhanced precision.",
    "body_text": "A photonic chip generated a four-mode entangled state, verified it and sensed linear combinations of four phase shifts with four integrated homodyne detectors. The entangled configuration reached 0.199(16) decibels below the shot-noise limit, compared with 0.041(18) decibels for separable states. The result moves one distributed-sensing architecture from bulk optics onto an integrated platform.",
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      "quantum sensing",
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      "entanglement"
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      "title": "arXiv preprint 2609.19092",
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