{"paper":{"title":"Efficient noiseless linear amplification for light fields with larger amplitudes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Alessandro Zavatta, Hyunseok Jeong, Jaewoo Joo, Jinwoo Park, Marco Bellini","submitted_at":"2015-10-30T06:23:56Z","abstract_excerpt":"We suggest and investigate a scheme for non-deterministic noiseless linear amplification of coherent states using successive photon addition, $(\\hat a^{\\dagger})^2$, where $\\hat a^\\dagger$ is the photon creation operator. We compare it with a previous proposal using the photon addition-then-subtraction, $\\hat a \\hat a^\\dagger$, where $\\hat a$ is the photon annihilation operator, that works as an appropriate amplifier only for weak light fields. We show that when the amplitude of a coherent state is $|\\alpha| \\gtrsim 0.91$, the $(\\hat a^{\\dagger})^2$ operation serves as a more efficient amplifi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.08977","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}