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Nature

Quantum entanglement as a tool to image distant astronomical objects

Published Mar 11, 2026• 0 citations
Publisher

Abstract

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.

DOI
10.1038/d41586-026-00724-4

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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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