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Title: 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:
 [1];  [1]
  1. 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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Cited by: 14 works
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Works referenced in this record:

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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
  • DOI: 10.1088/1361-6471/aaee20