Authors
Bin Wang, Xi-Yu Luo, Bo-Feng Gao, Jian-Long Liu, Chao-Yang Wang, Zi Yan, Qiao-Mu Ke, Da Teng, Ming-Yang Zheng, Yuan Cao, Jun Li, Cheng-Zhi Peng, Qiang Zhang, Xiao-Hui Bao, Jian-Wei Pan
Published in
Physical review letters. Volume 136. Issue 24. Pages 240801. Jun 19, 2026.
Abstract
Quantum networks and remote quantum entanglement serve as vital future quantum communication resources with broad applicability. A key direction lies in extending the baseline of optical interferometers to enhance angular resolution in interferometric imaging. Here, by measuring a simulated thermal light field, we report the demonstration of a memory-assisted nonlocal interferometer achieving a fiber-link baseline up to 20 km while simultaneously showing its capability to compensate for a geometric delay equivalent to 1.5 km. This result demonstrates potential for enhancing the angular resolution of interferometric imaging in the optical band with delocalized single-photon entanglement, and paves the way for future application of quantum memories in astronomical observation.
PMID:
42412455
Bibliographic data and abstract were imported from PubMed on 07 Jul 2026.
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