Density matrix renormalization group approach for many-body open quantum systems |
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| Authors: | Rotureau J Michel N Nazarewicz W Płoszajczak M Dukelsky J |
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| Affiliation: | Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA. |
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| Abstract: | The 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 (7)He. It is shown that the extended DMRG procedure provides a highly accurate treatment of the coupling to the nonresonant scattering continuum. |
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