{"paper":{"title":"Mesoscopic quantum superpositions in bimodal Bose-Einstein condensates: decoherence and strategies to counteract it","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"cond-mat.quant-gas","authors_text":"Alice Sinatra (LKB (Lhomond)), Krzysztof Pawlowski, Matteo Fadel, Philipp Treutlein, Yvan Castin (LKB (Lhomond))","submitted_at":"2017-03-21T15:57:53Z","abstract_excerpt":"We study theoretically the interaction-induced generation of  mesoscopic coherent spin state superpositions (small cat states) from an initial  coherent spin state in bimodal Bose-Einstein condensates and the subsequent phase revival, including decoherence due to  particle losses and fluctuations of the total particle number. In a full multimode description, we propose a preparation procedure of the initial coherent spin state and we study the effect of preexisting thermal fluctuations on the phase revival, and  on the spin and orbito-spinorial cat fidelities."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.07291","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"}