New Version: Grasp2K Relativistic Atomic Structure Package
Per Jönsson,Gediminas Gaigalas,Jacek Bieron,C. Froese Fischer,C. Froese Fischer,Ian P. Grant +5 more
TLDR
A revised version of Grasp 2 K supports earlier non-block and block versions of codes as well as a new block version in which the njgraf library module has been replaced by the librang angular package developed by Gaigalas based on the theory of Dirac–Hartree–Fock.About:
This article is published in Computer Physics Communications.The article was published on 2013-09-01 and is currently open access. It has received 494 citations till now.read more
Citations
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Solar UV and X-ray spectral diagnostics
Giulio Del Zanna,Helen E. Mason +1 more
TL;DR: In this article, a review of the diagnostic methods used to measure electron densities, electron temperatures, differential emission measure (DEM), and relative chemical abundances is presented, focusing on the optically thin emission from the solar atmosphere, mostly found at UV and X-ray (XUV) wavelengths.
Journal ArticleDOI
GRASP2018-A Fortran 95 version of the General Relativistic Atomic Structure Package
TL;DR: An updated Fortran 95 version of the recommended block versions of programs from Grasp 2K Version 1_1 for large-scale calculations Jonsson et al. (2013).
Journal ArticleDOI
Advanced multiconfiguration methods for complex atoms : I. Energies and wave functions
TL;DR: In this paper, a review of variational MCHF and Dirac-Hartree-Fock (MCDHF) is presented, where the multireference single and double process for generating expansions and the systematic procedure for monitoring convergence are discussed.
Journal ArticleDOI
Energy of the 229 Th nuclear clock transition
Benedict Seiferle,Lars von der Wense,Pavlo V. Bilous,Ines Amersdorffer,Christoph Lemell,Florian Libisch,Simon Stellmer,Thorsten Schumm,Christoph E. Düllmann,Adriana Pálffy,Peter G. Thirolf +10 more
TL;DR: The method combines nuclear and atomic physics measurements to advance precision metrology, and the findings are expected to facilitate the application of high-resolution laser spectroscopy on nuclei and to enable the development of a nuclear optical clock of unprecedented accuracy.
Journal ArticleDOI
Probing New Long-Range Interactions by Isotope Shift Spectroscopy.
Julian C. Berengut,Dmitry Budker,Dmitry Budker,Dmitry Budker,Cédric Delaunay,Victor V. Flambaum,Claudia Frugiuele,Elina Fuchs,Christophe Grojean,Roni Harnik,Roee Ozeri,Gilad Perez,Yotam Soreq +12 more
TL;DR: A method to probe new long- and intermediate-range interactions using precision atomic isotope shift spectroscopy and a formalism to interpret linear King plots as bounds on new physics with minimal theory inputs are explored.
References
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GRASP92: a package for large-scale relativistic atomic structure calculations
TL;DR: In this paper, a suite of programs for multiconfiguration or configuration-interaction relativistic atomic structure calculations with large configuration state function lists is described, where atomic orbitals are taken to be four-component spinors.
NIST Atomic Spectra Database
TL;DR: The Atomic Spectra Database (ASD) as discussed by the authors is a large-scale database of tens of thousands of spectral lines and energy levels at the National Institute of Standards and Technology (NIST).
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The grasp2K relativistic atomic structure package
TL;DR: This paper describes grasp2K, a general-purpose relativistic atomic structure package, a modification and extension of the GRASP92 package that supports the 32-bit Linux and ibmSP environments where the former is compatible with many Unix systems.
NIST Atomic Spectra Database
Yuri Ralchenko,Jeffrey R. Fuhr,F C. Jou,Alexander Kramida,William C. Martin,Larissa Podobedova,Joseph Reader,Edward B. Saloman,Jean E. Sansonetti,Wolfgang L. Wiese +9 more
TL;DR: This work presents a detailed description of ASD 3.0 emphasizing numerous advanced features and options for data search and presentation and represents a significant new step in the development of dynamic databases providing powerful tools for data analysis and manipulation.
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The Ratip program for relativistic calculations of atomic transition, ionization and recombination properties ☆
TL;DR: The Ratip program has been developed as a scalar Fortran 90/95 code and provides a simple make feature which help port the code to different platforms and architectures and makes available a major part of the code for public use.