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

J. Rotureau, N. Michel, W. Nazarewicz, M. Płoszajczak, and J. Dukelsky

Phys. Rev. Lett. 97, 110603 – Published 13 September 2006

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.

Received 3 March 2006

DOI:https://doi.org/10.1103/PhysRevLett.97.110603

Authors & Affiliations

J. Rotureau^1,2,3, N. Michel^1,2,3, W. Nazarewicz^1,2,4, M. Płoszajczak⁵, and J. Dukelsky⁶

¹Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
²Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
³Joint Institute for Heavy Ion Research, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831, USA
⁴Institute of Theoretical Physics, University of Warsaw, ul. Hoża 69, 00-681 Warsaw, Poland
⁵Grand Accélérateur National d’Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, BP 55027, F-14076 Caen Cedex, France
⁶Instituto de Estructura de la Materia, CSIC, Serrano 123, 28006 Madrid, Spain

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Issue

Vol. 97, Iss. 11 — 15 September 2006

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