Density matrix renormalization group approach for many-body open quantum systems

Details Density matrix renormalization group approach for many-body open quantum systems Density matrix renormalization group approach for many-body open quantum systems

2006-03-07

arxiv.org/abs/nucl-th/0603021v1

Phys.Rev.Lett. 97 (2006) 110603

Physics

Nuclear Physics

Nuclear Theory

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.97.110603

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. It is shown that the DMRG technique applied to broad resonances in the unbound neutron-rich nucleus 7He provides a highly accurate treatment of the coupling to the non-resonant scattering continuum.

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