Quantum-assisted telescope arrays
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Quantum networks provide a platform for astronomical interferometers capable of imaging faint stellar objects. In a recent work [E. T. Khabiboulline, Phys. Rev. Lett. 123, 070504 (2019)10.1103/PhysRevLett.123.070504], 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.
Originalsprog | Engelsk |
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Artikelnummer | 022316 |
Tidsskrift | Physical Review A - Atomic, Molecular, and Optical Physics |
Vol/bind | 100 |
Udgave nummer | 2 |
Antal sider | 9 |
ISSN | 2469-9926 |
DOI | |
Status | Udgivet - 2019 |
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