Quantum radar: can it really work with high losses?

Avi Pe'er

doi:10.1117/12.2586475

5 March 2021 Quantum radar: can it really work with high losses?

Avi Pe'er

Proceedings Volume 11700, Optical and Quantum Sensing and Precision Metrology; 117002E (2021) https://doi.org/10.1117/12.2586475
Event: SPIE OPTO, 2021, Online Only

Abstract

The “quantum Radar” seeks to harness quantum entanglement and squeezing to improve the detection of faint targets beyond the best possible classical sensor. The major challenge of the quantum Radar is the very large optical loss of the target beam, which induces vacuum fluctuations and hampers the quantum correlation. In addition, the faint target reflection requires the use of high power beams, which favors high-power stimulated sources of coherent squeezed light over spontaneous low power sources of entangled photons. I will present the lossy SU1,1 nonlinear interferometer with coherent seeding as a candidate for quantum Radar sensing. I will highlight the quantum features of this sensor and report a demonstration of the quantum enhanced interference contrast, even in the presence of high loss.

Conference Presentation

Citation Download Citation

Avi Pe'er "Quantum radar: can it really work with high losses?", Proc. SPIE 11700, Optical and Quantum Sensing and Precision Metrology, 117002E (5 March 2021); https://doi.org/10.1117/12.2586475

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