  Quantum networks provide a platform for astronomical interferometers capable
of imaging faint stellar objects. In a recent work [arXiv:1809.01659], 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.
