{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1360004235000778880.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1103/physrevc.94.014314"}},{"identifier":{"@type":"URI","@value":"http://link.aps.org/article/10.1103/PhysRevC.94.014314"}},{"identifier":{"@type":"URI","@value":"http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevC.94.014314/fulltext"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@value":"Effective field theory of Bose-Einstein condensation of<mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"><mml:mi>α</mml:mi></mml:math>clusters and Nambu-Goldstone-Higgs states in<mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"><mml:mmultiscripts><mml:mi mathvariant=\"normal\">C</mml:mi><mml:mprescripts/><mml:none/><mml:mn>12</mml:mn></mml:mmultiscripts></mml:math>"}],"description":[{"notation":[{"@value":"An effective field theory of $\\alpha$ cluster condensation is formulated as a spontaneously broken symmetry in quantum field theory to understand the raison d'etre and nature of the Hoyle and $\\alpha$ cluster states in $^{12}$C. The Nambu--Goldstone and Higgs mode operators in infinite systems are replaced with a pair of canonical operators whose Hamiltonian gives rise to discrete energy states in addition to the Bogoliubov--de Gennes excited states. The calculations reproduce well the experimental spectrum of the $\\alpha$ cluster states. The existence of the Nambu--Goldstone--Higgs states is demonstrated and crucial. The $\\gamma$ decay transitions are also obtained."}]},{"notation":[{"@value":"Comment: 8 pages, 8 figures"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380004235000779010","@type":"Researcher","foaf:name":[{"@value":"Y. Nakamura"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004235000779009","@type":"Researcher","foaf:name":[{"@value":"J. Takahashi"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004235000779008","@type":"Researcher","foaf:name":[{"@value":"Y. Yamanaka"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004235000778882","@type":"Researcher","foaf:name":[{"@value":"S. Ohkubo"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"24699985"},{"@type":"EISSN","@value":"24699993"}],"prism:publicationName":[{"@value":"Physical Review C"}],"dc:publisher":[{"@value":"American Physical Society (APS)"}],"prism:publicationDate":"2016-07-19","prism:volume":"94","prism:number":"1","prism:startingPage":"014314"},"reviewed":"false","dc:rights":["http://link.aps.org/licenses/aps-default-license"],"url":[{"@id":"http://link.aps.org/article/10.1103/PhysRevC.94.014314"},{"@id":"http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevC.94.014314/fulltext"}],"createdAt":"2016-07-19","modifiedAt":"2017-06-24","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=Nuclear%20Theory","dc:title":"Nuclear 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