{"paper":{"title":"Nonlinear microwave photon-occupancy of a driven resonator strongly coupled to a transmon qubit","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Baladitya Suri, Ben S. Palmer, Frederick C. Wellstood, Lev S. Bishop, Sergey Novikov, Zach Keane","submitted_at":"2015-10-31T21:10:38Z","abstract_excerpt":"We measure photon-occupancy in a thin-film superconducting lumped element resonator coupled to a transmon qubit at 20$\\,$mK and find a nonlinear dependence on the applied microwave power. The transmon-resonator system was operated in the strong dispersive regime, where the ac Stark shift ($2\\chi$) due to a single microwave photon present in the resonator was larger than the linewidth ($\\Gamma$) of the qubit transition. When the resonator was coherently driven at $5.474325\\,$GHz, the transition spectrum of the transmon at $4.982\\,$GHz revealed well-resolved peaks, each corresponding to an indiv"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.00174","kind":"arxiv","version":1},"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"}