Quantum-assisted telescope arrays

作者：Emil T. Khabiboulline, Johannes Borregaard, Kristiaan De Greve, Mikhail D. Lukin · 发表于：Physical Review A · 年份：2019 · DOI：10.1103/physreva.100.022316 · 被引用次数：77 · 研究领域：Advanced Optical Sensing Technologies、Near-Field Optical Microscopy、Advanced Fluorescence Microscopy Techniques

Quantum networks provide a platform for astronomical interferometers capable of imaging faint stellar objects. In a recent work [E. T. Khabiboulline et al., Phys. Rev. Lett. 123, 070504 (2019)], we presented a protocol that circumvents transmission losses with efficient use of quantum resources and modest quantum memories. Here we analyze a number of extensions to that scheme. We show that it can be operated as a truly broadband interferometer and generalized to multiple sites in the array. We also analyze how imaging based on the quantum Fourier transform provides improved signal-to-noise ratio compared to classical processing. Finally, we discuss physical realizations including photon-detection-based quantum state transfer.