--- res: bibo_abstract: - Solid-state microwave systems offer strong interactions for fast quantum logic and sensing but photons at telecom wavelength are the ideal choice for high-density low-loss quantum interconnects. A general-purpose interface that can make use of single photon effects requires < 1 input noise quanta, which has remained elusive due to either low efficiency or pump induced heating. Here we demonstrate coherent electro-optic modulation on nanosecond-timescales with only 0.16+0.02−0.01 microwave input noise photons with a total bidirectional transduction efficiency of 8.7% (or up to 15% with 0.41+0.02−0.02), as required for near-term heralded quantum network protocols. The use of short and high-power optical pump pulses also enables near-unity cooperativity of the electro-optic interaction leading to an internal pure conversion efficiency of up to 99.5%. Together with the low mode occupancy this provides evidence for electro-optic laser cooling and vacuum amplification as predicted a decade ago.@eng bibo_authorlist: - foaf_Person: foaf_givenName: Rishabh foaf_name: Sahu, Rishabh foaf_surname: Sahu foaf_workInfoHomepage: http://www.librecat.org/personId=47D26E34-F248-11E8-B48F-1D18A9856A87 orcid: 0000-0001-6264-2162 - foaf_Person: foaf_givenName: William J foaf_name: Hease, William J foaf_surname: Hease foaf_workInfoHomepage: http://www.librecat.org/personId=29705398-F248-11E8-B48F-1D18A9856A87 - foaf_Person: foaf_givenName: Alfredo R foaf_name: Rueda Sanchez, Alfredo R foaf_surname: Rueda Sanchez foaf_workInfoHomepage: http://www.librecat.org/personId=3B82B0F8-F248-11E8-B48F-1D18A9856A87 orcid: 0000-0001-6249-5860 - foaf_Person: foaf_givenName: Georg M foaf_name: Arnold, Georg M foaf_surname: Arnold foaf_workInfoHomepage: http://www.librecat.org/personId=3770C838-F248-11E8-B48F-1D18A9856A87 - foaf_Person: foaf_givenName: Liu foaf_name: Qiu, Liu foaf_surname: Qiu foaf_workInfoHomepage: http://www.librecat.org/personId=45e99c0d-1eb1-11eb-9b96-ed8ab2983cac orcid: 0000-0003-4345-4267 - 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: 10.1038/s41467-022-28924-2 bibo_volume: 13 dct_date: 2022^xs_gYear dct_identifier: - UT:000767892300013 dct_isPartOf: - http://id.crossref.org/issn/20411723 dct_language: eng dct_publisher: Springer Nature@ dct_title: Quantum-enabled operation of a microwave-optical interface@ ...