Journal
FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS
Volume 61, Issue 2-3, Pages 66-79Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/prop.201200127
Keywords
Clustering; open quantum system; shell model; threshold effect; exceptional points
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Funding
- MNiSW [N N202 033837]
- Collaboration COPIN-GANIL on physics of exotic nuclei
- Project SARFEN (Structure And Reactions For Exotic Nuclei) within the framework of the ERANET NuPNET
- FUSTIPEN (French-U.S. Theory Institute for Physics with Exotic Nuclei) under DOE [DE-FG02-10ER41700]
- DOE [DE-FG02-96ER40963]
- University of Tennessee
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Open Quantum System (OQS) description of a many-body system involves interaction of Shell Model (SM) states through the particle continuum. In realistic nuclear applications, this interaction may lead to collective phenomena in the ensemble of SM states. We claim that the nuclear clustering is an emergent, near-threshold phenomenon, which cannot be elucidated within the Closed Quantum System (CQS) framework. We approach this problem by investigating the near-threshold behavior of Exceptional Points (EPs) in the realistic Continuum Shell Model (CSM). The consequences for the alpha-clustering phenomenon are discussed. (C) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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