Extensions to the No-Core Shell Model

Importance-Truncation, Regulators and Reactions

Nonfiction, Science & Nature, Science, Physics, Nuclear Physics, Quantum Theory
Cover of the book Extensions to the No-Core Shell Model by Michael Karl Gerhard Kruse, Springer International Publishing
View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart
Author: Michael Karl Gerhard Kruse ISBN: 9783319013930
Publisher: Springer International Publishing Publication: September 5, 2013
Imprint: Springer Language: English
Author: Michael Karl Gerhard Kruse
ISBN: 9783319013930
Publisher: Springer International Publishing
Publication: September 5, 2013
Imprint: Springer
Language: English

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.

View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart

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.

More books from Springer International Publishing

Cover of the book Return Migration to Afghanistan by Michael Karl Gerhard Kruse
Cover of the book Life-cycle Cost Approach for Management of Environmental Resources by Michael Karl Gerhard Kruse
Cover of the book Proceedings of the 3rd International Symposium of Information and Internet Technology (SYMINTECH 2018) by Michael Karl Gerhard Kruse
Cover of the book Random Walks on Disordered Media and their Scaling Limits by Michael Karl Gerhard Kruse
Cover of the book Foundations of Augmented Cognition by Michael Karl Gerhard Kruse
Cover of the book Biofuels and Bioenergy (BICE2016) by Michael Karl Gerhard Kruse
Cover of the book Political Violence, Armed Conflict, and Youth Adjustment by Michael Karl Gerhard Kruse
Cover of the book Indigenous Peoples' Cultural Property Claims by Michael Karl Gerhard Kruse
Cover of the book Viscometry for Liquids by Michael Karl Gerhard Kruse
Cover of the book Neural Information Processing by Michael Karl Gerhard Kruse
Cover of the book Improving Societal Resilience to Disasters by Michael Karl Gerhard Kruse
Cover of the book Biotechnology and Conservation of Cultural Heritage by Michael Karl Gerhard Kruse
Cover of the book Pancreatic Islet Isolation by Michael Karl Gerhard Kruse
Cover of the book Lipids in Plant and Algae Development by Michael Karl Gerhard Kruse
Cover of the book Multiple Criteria Decision Making and Aiding by Michael Karl Gerhard Kruse
We use our own "cookies" and third party cookies to improve services and to see statistical information. By using this website, you agree to our Privacy Policy