R. Silvestri, R. W. Peterson, Christopher Hilweg, Haocun Yu, P. Walther
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Towards large-scale entanglement-enhanced interferometry
We report progress measuring Earth’s rotation with entangled photons. In our 2 km fiber Sagnac interferometer, we achieve milliradian sensitivity with cw light, find a preliminary signal, and work towards injecting 2-photon NOON states.
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