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Density Matrix Renormalization Group Approach for Many-Body Open Quantum Systems

AuthorsRotureau, J.; Michel, N.; Nazarewicz, W.; Płoszajczak, M.; Dukelsky, Jorge
Keywords[PACS] Renormalization group methods
[PACS] Numerical linear algebra
[PACS] Computational techniques; simulations
[PACS] Shell model
Issue Date15-Sep-2006
PublisherAmerican Physical Society
CitationPhysical Review Letters 97(11): 110603 (2006)
AbstractThe density matrix renormalization group (DMRG) approach is extended to complex-symmetric density matrices characteristic of many-body open quantum systems. Within the continuum shell model, we investigate the interplay between many-body configuration interaction and coupling to open channels in case of the unbound nucleus 7He. It is shown that the extended DMRG procedure provides a highly accurate treatment of the coupling to the nonresonant scattering continuum.
Description4 pages, 1 table, 3 figures.-- PACS nrs.: 05.10.Cc; 02.60.Dc; 02.70.-c; 21.60.Cs.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevLett.97.110603
Appears in Collections:(CFMAC-IEM) Artículos
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