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Title: Effective field theory in the harmonic oscillator basis

Journal Article · · Physical Review C
 [1];  [1];  [1];  [1];  [1]
  1. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division

In this paper, we develop interactions from chiral effective field theory (EFT) that are tailored to the harmonic oscillator basis. As a consequence, ultraviolet convergence with respect to the model space is implemented by construction and infrared convergence can be achieved by enlarging the model space for the kinetic energy. In oscillator EFT, matrix elements of EFTs formulated for continuous momenta are evaluated at the discrete momenta that stem from the diagonalization of the kinetic energy in the finite oscillator space. By fitting to realistic phase shifts and deuteron data we construct an effective interaction from chiral EFT at next-to-leading order. Finally, many-body coupled-cluster calculations of nuclei up to 132Sn converge fast for the ground-state energies and radii in feasible model spaces.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Organization:
Univ. of Tennessee, Knoxville, TN (United States)
Grant/Contract Number:
AC05-00OR22725; FG02-96ER40963; SC0008499
OSTI ID:
1302893
Alternate ID(s):
OSTI ID: 1249723
Journal Information:
Physical Review C, Vol. 93, Issue 4; ISSN 2469-9985
Publisher:
APSCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 19 works
Citation information provided by
Web of Science

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Emergent properties of nuclei from ab initio coupled-cluster calculations journal May 2016
Probing uncertainties of nuclear structure corrections in light muonic atoms journal December 2019
Emergent properties of nuclei from ab initio coupled-cluster calculations text January 2016
Cloud Quantum Computing of an Atomic Nucleus text January 2018
Simulations of Subatomic Many-Body Physics on a Quantum Frequency Processor text January 2018

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