Microwave quantum illumination with a digital phase-conjugated receiver

conference paper Microwave quantum illumination with a digital phase-conjugated receiver published yes Shabir Barzanjeh author 2D25E1F6-F248-11E8-B48F-1D18A9856A870000-0003-0415-1423 Stefano Pirandola author David Vitali author Johannes M Fink author 4B591CBA-F248-11E8-B48F-1D18A9856A870000-0001-8112-028X JoFi department RadarConf: National Conference on Radar A Fiber Optic Transceiver for Superconducting Qubits project Quantum readout techniques and technologies project Microwave-to-Optical Quantum Link: Quantum Teleportation and Quantum Illumination with cavity Optomechanics project Hybrid Optomechanical Technologies project Quantum illumination is a sensing technique that employs entangled signal-idler beams to improve the detection efficiency of low-reflectivity objects in environments with large thermal noise. The advantage over classical strategies is evident at low signal brightness, a feature which could make the protocol an ideal prototype for non-invasive scanning or low-power short-range radar. Here we experimentally investigate the concept of quantum illumination at microwave frequencies, by generating entangled fields using a Josephson parametric converter which are then amplified to illuminate a room-temperature object at a distance of 1 meter. Starting from experimental data, we simulate the case of perfect idler photon number detection, which results in a quantum advantage compared to the relative classical benchmark. Our results highlight the opportunities and challenges on the way towards a first room-temperature application of microwave quantum circuits. IEEE2020Florence, Italy eng IEEE National Radar Conference - Proceedings 1097-5659 9781728189420 1908.03058 00061222490008910.1109/RadarConf2043947.2020.9266397 20209 https://research-explorer.ista.ac.at/record/7910 Barzanjeh, Shabir, Stefano Pirandola, David Vitali, and Johannes M Fink. “Microwave Quantum Illumination with a Digital Phase-Conjugated Receiver.” In IEEE National Radar Conference - Proceedings, Vol. 2020. IEEE, 2020. <a href="https://doi.org/10.1109/RadarConf2043947.2020.9266397">https://doi.org/10.1109/RadarConf2043947.2020.9266397</a>. S. Barzanjeh, S. Pirandola, D. Vitali, and J. M. Fink, “Microwave quantum illumination with a digital phase-conjugated receiver,” in IEEE National Radar Conference - Proceedings, Florence, Italy, 2020, vol. 2020, no. 9. Barzanjeh S, Pirandola S, Vitali D, Fink JM. 2020. Microwave quantum illumination with a digital phase-conjugated receiver. IEEE National Radar Conference - Proceedings. RadarConf: National Conference on Radar vol. 2020, 9266397. Barzanjeh S, Pirandola S, Vitali D, Fink JM. Microwave quantum illumination with a digital phase-conjugated receiver. In: IEEE National Radar Conference - Proceedings. Vol 2020. IEEE; 2020. doi:<a href="https://doi.org/10.1109/RadarConf2043947.2020.9266397">10.1109/RadarConf2043947.2020.9266397</a> S. Barzanjeh, S. Pirandola, D. Vitali, J.M. Fink, in:, IEEE National Radar Conference - Proceedings, IEEE, 2020. Barzanjeh, S., Pirandola, S., Vitali, D., & Fink, J. M. (2020). Microwave quantum illumination with a digital phase-conjugated receiver. In IEEE National Radar Conference - Proceedings (Vol. 2020). Florence, Italy: IEEE. <a href="https://doi.org/10.1109/RadarConf2043947.2020.9266397">https://doi.org/10.1109/RadarConf2043947.2020.9266397</a> Barzanjeh, Shabir, et al. “Microwave Quantum Illumination with a Digital Phase-Conjugated Receiver.” IEEE National Radar Conference - Proceedings, vol. 2020, no. 9, 9266397, IEEE, 2020, doi:<a href="https://doi.org/10.1109/RadarConf2043947.2020.9266397">10.1109/RadarConf2043947.2020.9266397</a>. 90012021-01-10T23:01:17Z2026-04-03T09:35:48Z