{"id":"c9276e4e-1754-4ce6-aefa-d1005db9d2fe","arxiv_id":"2505.13992","paper_version":1,"verdict":"CONDITIONAL","confidence":"MODERATE","novelty_score":6.0,"correctness_risk":"medium","formal_verification":"none","parameter_count":4,"one_line_summary":"A linear-optical two-photon quantum scissor was built and tested, achieving up to 235x gain on the two-photon component with coherence-preserving operation.","lead":"Researchers built and tested a device that probabilistically amplifies an optical quantum state containing up to two photons, boosting the two-photon component more than a hundredfold while preserving its phase coherence. The result is the first experimental step toward noiseless multi-photon amplifiers needed for quantum networks and repeaters.","discovery_kind":"extension","skeptic_critique":null,"referee_report":null,"author_rebuttal":null,"desk_editor":null,"rs_alignment":null,"lean_confirmation":null,"pith_extraction":null,"created_at":"2026-08-07T15:44:14.516584+00:00","model_set":{"reader":"deepseek-v4-flash"},"falsifier":null,"supporting_citations":[],"review_version":1}