Demonstrating quantum entanglement improves sensitivity in long-baseline interferometers, implying enhanced imaging of distant astronomical objects.
Particles entangled over long distances can, in theory, improve the sensitivity of long-baseline interferometers that are observing weak thermal light sources. A proof-of-concept experiment now demonstrates entanglement-assisted interferometry, paving the way for entanglement-enhanced non‑local sensing techniques. The resolution of telescope arrays detecting faint light signals could be improved using a quantum trick.
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