This title appears in the Scientific Report :
2015
Please use the identifier:
http://dx.doi.org/10.1140/epja/i2015-15092-1 in citations.
Please use the identifier: http://hdl.handle.net/2128/13247 in citations.
Nuclear Lattice Simulations using Symmetry-Sign Extrapolation
Nuclear Lattice Simulations using Symmetry-Sign Extrapolation
Projection Monte Carlo calculations of lattice Chiral Effective Field Theory suffer from sign oscillations to a varying degree dependent on the number of protons and neutrons. Hence, such studies have hitherto been concentrated on nuclei with equal numbers of protons and neutrons, and especially on...
Saved in:
Personal Name(s): | Lähde, Timo (Corresponding author) |
---|---|
Luu, Tom / Lee, Dean / Meissner, Ulf-G. / Epelbaum, Evgeny / Krebs, Hermann / Rupak, Gautam | |
Contributing Institute: |
Theorie der starken Wechselwirkung; IKP-3 Theorie der Starken Wechselwirkung; IAS-4 |
Published in: | The @European physical journal / A, 51 (2015) S. 92 |
Imprint: |
Berlin
Springer
2015
|
DOI: |
10.1140/epja/i2015-15092-1 |
Document Type: |
Journal Article |
Research Program: |
Nuclear Physics from Quantum Chromodynamics Study of Strongly Interacting Matter TRR 110: Symmetrien und Strukturbildung in der Quantenchromodynamik Computational Science and Mathematical Methods |
Subject (ZB): | |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/13247 in citations.
Projection Monte Carlo calculations of lattice Chiral Effective Field Theory suffer from sign oscillations to a varying degree dependent on the number of protons and neutrons. Hence, such studies have hitherto been concentrated on nuclei with equal numbers of protons and neutrons, and especially on the alpha nuclei where the sign oscillations are smallest. Here, we introduce the 'symmetry-sign extrapolation' method, which allows us to use the approximate Wigner SU(4) symmetry of the nuclear interaction to systematically extend the Projection Monte Carlo calculations to nuclear systems where the sign problem is severe. We benchmark this method by calculating the ground-state energies of the $^{12}$C, $^6$He and $^6$Be nuclei, and discuss its potential for studies of neutron-rich halo nuclei and asymmetric nuclear matter. |