Nuclear structure properties of 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Hg</mml:mi><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>193</mml:mn><mml:mo>–</mml:mo><mml:mn>200</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>
 isotopes within large-scale shell model calculations

Sahoo, Subhrajit; Srivastava, Praveen C.; Shimizu, Noritaka; Utsuno, Yutaka

doi:10.1103/physrevc.110.024306

Phys. Rev. C

2024

DOI: 10.1103/physrevc.110.024306

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Nuclear structure properties of Hg193–200 isotopes within large-scale shell model calculations

Subhrajit Sahoo,

Praveen C. Srivastava,

Noritaka Shimizu

et al.

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Monopole and Seniority Truncations in the Large-Scale Configuration Interaction Shell Model Approach

Choudhary,

2024

Symmetry

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This paper addresses the challenges of solving the quantum many-body problem, particularly within nuclear physics, through the configuration interaction (CI) method. Large-scale shell model calculations often become computationally infeasible for systems with a large number of valence particles, requiring truncation techniques. We propose truncation methods for the nuclear shell model, in which angular momentum is conserved and rotational symmetry is restored. We introduce the monopole-interaction-based truncation and seniority truncation strategies, designed to reduce the dimension of the calculations. These truncations can be established by considering certain partitions based on their importance and selecting physically meaningful states. We examine these truncations for Sn, Xe, and Pb isotopes, demonstrating their effectiveness in overcoming computational limits. These truncations work well for systems with either a single type of valence nucleon or with both types. With these truncations, we are able to achieve good convergence for the energy at a very small portion of the total dimension.

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Monopole and Seniority Truncations in the Large-Scale Configuration Interaction Shell Model Approach

Choudhary,

2024

Symmetry

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Nuclear structure properties of Hg193–200 isotopes within large-scale shell model calculations

Cited by 1 publication

References 47 publications

Monopole and Seniority Truncations in the Large-Scale Configuration Interaction Shell Model Approach

Monopole and Seniority Truncations in the Large-Scale Configuration Interaction Shell Model Approach

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