Memory-Assisted Nonlocal Interferometer Towards Long-Baseline Telescopes

• URL: http://arxiv.org/abs/2511.10988v1
• Date: Fri, 14 Nov 2025 06:25:26 GMT
• Title: Memory-Assisted Nonlocal Interferometer Towards Long-Baseline Telescopes
• 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,
• Abstract summary: memory-assisted nonlocal interferometer achieves fiber-link baseline up to 20 km.<n> paves the way for future application of quantum memories in astronomical observation.
• Score: 14.056461958187507
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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.

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