Extensions to the No-Core Shell Model

Name: Extensions to the No-Core Shell Model
Brand: Springer International Publishing AG
SKU: 9783319013923
Price: 2286 CZK
Availability: InStock

Importance-Truncation, Regulators and Reactions

Autor: Michael Karl Gerhard Kruse

Jazyk:

Vazba: Pevná

Vydavatel: Springer International Publishing AG

Dostupnost: Skladem u dodavatele

Odesíláme za 10-13 dnů

2 286 Kč

Extensions to the No-Core Shell Model presents three extensions to the No-Core Shell Model (NCSM) th...

Informace o knize

Autor

Michael Karl Gerhard Kruse

Jazyk

Angličtina

Vazba

Kniha - Pevná

Vydáno

2013

Stránek

126

EAN

9783319013923

ISBN

3319013920

Enbook ID

01469183

Vydavatel

Springer International Publishing AG

Hmotnost

3376

Rozměry

155 x 235 x 11

Kompletní popis

Extensions to the No-Core Shell Model presents three extensions to the No-Core Shell Model (NCSM) that allow for calculations of heavier nuclei, specifically for the p-shell nuclei. The Importance-Truncated NCSM (IT-NCSM) formulated on arguments of multi-configurational perturbation theory selects a small set of basis states from the initially large basis space in which the Hamiltonian is diagonalized. Previous IT-NCSM calculations have proven reliable, however, there has been no thorough investigation of the inherent error in the truncated IT-NCSM calculations. §This thesis provides a detailed study of IT-NCSM calculations and compares them to full NCSM calculations to judge the accuracy of IT-NCSM in heavier nuclei. When IT-NCSM calculations are performed, one often needs to extrapolate the ground-state energy from the finite basis (or model) spaces to the full NCSM model space. In this thesis a careful investigation of the extrapolation procedures was performed. On a related note, extrapolations in the NCSM are commonplace, but up to recently did not have the ultraviolet (UV) or infrared (IR) physics under control. This work additionally presents a method that maps the NCSM parameters into an effective-field theory inspired framework, in which the UV and IR physics are treated appropriately. The NCSM is well-suited to describe bound-state properties of nuclei, but is not well-adapted to describe loosely bound systems, such as the exotic nuclei near the neutron drip line. With the inclusion of the Resonating Group Method (RGM), the NCSM / RGM can provide a first-principles description of exotic nuclei and the first extension of the NCSM.§

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Extensions to the No-Core Shell Model

Importance-Truncation, Regulators and Reactions

Informace o knize

Kompletní popis

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