Projection of angular momentum via linear algebra
Abstract
Projection of many-body states with good angular momentum from an initial state is usually accomplished by a three-dimensional integral. Here, we show how projection can instead be done by solving a straightforward system of linear equations. We demonstrate the method and give sample applications to $$^{48}$$Cr and $$^{60}$$Fe in the $pf$ shell. This new projection scheme, which is competitive against the standard numerical quadrature, should also be applicable to other quantum numbers such as isospin and particle number.
- Authors:
-
- San Diego State Univ., San Diego, CA (United States). Dept. of Physics
- Publication Date:
- Research Org.:
- San Diego State Univ., CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1430220
- Alternate Identifier(s):
- OSTI ID: 1410865
- Grant/Contract Number:
- FG02-03ER41272
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review C
- Additional Journal Information:
- Journal Volume: 96; Journal Issue: 6; Journal ID: ISSN 2469-9985
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; mean-field; angular momentum projection
Citation Formats
Johnson, Calvin W., and O'Mara, Kevin D. Projection of angular momentum via linear algebra. United States: N. p., 2017.
Web. doi:10.1103/PhysRevC.96.064304.
Johnson, Calvin W., & O'Mara, Kevin D. Projection of angular momentum via linear algebra. United States. https://doi.org/10.1103/PhysRevC.96.064304
Johnson, Calvin W., and O'Mara, Kevin D. Fri .
"Projection of angular momentum via linear algebra". United States. https://doi.org/10.1103/PhysRevC.96.064304. https://www.osti.gov/servlets/purl/1430220.
@article{osti_1430220,
title = {Projection of angular momentum via linear algebra},
author = {Johnson, Calvin W. and O'Mara, Kevin D.},
abstractNote = {Projection of many-body states with good angular momentum from an initial state is usually accomplished by a three-dimensional integral. Here, we show how projection can instead be done by solving a straightforward system of linear equations. We demonstrate the method and give sample applications to $^{48}$Cr and $^{60}$Fe in the $pf$ shell. This new projection scheme, which is competitive against the standard numerical quadrature, should also be applicable to other quantum numbers such as isospin and particle number.},
doi = {10.1103/PhysRevC.96.064304},
journal = {Physical Review C},
number = 6,
volume = 96,
place = {United States},
year = {Fri Dec 01 00:00:00 EST 2017},
month = {Fri Dec 01 00:00:00 EST 2017}
}
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Works referencing / citing this record:
Convergence and efficiency of angular momentum projection
journal, November 2018
- Johnson, Calvin W.; Jiao, Changfeng
- Journal of Physics G: Nuclear and Particle Physics, Vol. 46, Issue 1