State-dependent interactions for the Gamow shell model

G. Hagen; M. Hjorth-Jensen; J. S. Vaagen

doi:10.1088/0954-3899/31/8/012

State-dependent interactions for the Gamow shell model

G. Hagen, M. Hjorth-Jensen, J. S. Vaagen

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

A momentum space representation of the Berggren completeness is used in Gamow shell model calculations of the ^5-7He isotopes. A major problem in the newly developed Gamow shell model is the extreme growth of the number of many-body configurations as the number of valence particles increases. This problem is addressed using the Lee-Suzuki similarity transformation method in the construction of an effective two-body interaction. At the convergence the dimensionality is found to be drastically reduced as compared to the full problem. This offers a promising approach to the study of weakly bound nuclei.

Original language	English
Pages (from-to)	S1337-S1348
Journal	Journal of Physics G: Nuclear and Particle Physics
Volume	31
Issue number	8
DOIs	https://doi.org/10.1088/0954-3899/31/8/012
State	Published - Aug 1 2005
Externally published	Yes

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10.1088/0954-3899/31/8/012

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AU - Vaagen, J. S.

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AB - A momentum space representation of the Berggren completeness is used in Gamow shell model calculations of the 5-7He isotopes. A major problem in the newly developed Gamow shell model is the extreme growth of the number of many-body configurations as the number of valence particles increases. This problem is addressed using the Lee-Suzuki similarity transformation method in the construction of an effective two-body interaction. At the convergence the dimensionality is found to be drastically reduced as compared to the full problem. This offers a promising approach to the study of weakly bound nuclei.

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State-dependent interactions for the Gamow shell model

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