--- res: bibo_abstract: - 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.@eng bibo_authorlist: - foaf_Person: foaf_givenName: Shabir foaf_name: Barzanjeh, Shabir foaf_surname: Barzanjeh foaf_workInfoHomepage: http://www.librecat.org/personId=2D25E1F6-F248-11E8-B48F-1D18A9856A87 orcid: 0000-0003-0415-1423 - foaf_Person: foaf_givenName: Stefano foaf_name: Pirandola, Stefano foaf_surname: Pirandola - foaf_Person: foaf_givenName: David foaf_name: Vitali, David foaf_surname: Vitali - foaf_Person: foaf_givenName: Johannes M foaf_name: Fink, Johannes M foaf_surname: Fink foaf_workInfoHomepage: http://www.librecat.org/personId=4B591CBA-F248-11E8-B48F-1D18A9856A87 orcid: 0000-0001-8112-028X bibo_doi: 10.1109/RadarConf2043947.2020.9266397 bibo_issue: '9' bibo_volume: 2020 dct_date: 2020^xs_gYear dct_identifier: - UT:000612224900089 dct_isPartOf: - http://id.crossref.org/issn/1097-5659 - http://id.crossref.org/issn/9781728189420 dct_language: eng dct_publisher: IEEE@ dct_title: Microwave quantum illumination with a digital phase-conjugated receiver@ ...