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001     281219
005     20240610121038.0
024 7 _ |a arXiv:1502.06787
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024 7 _ |a 10.1140/epja/i2015-15092-1
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024 7 _ |a 2128/13247
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041 _ _ |a English
082 _ _ |a 530
100 1 _ |a Lähde, Timo
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245 _ _ |a Nuclear Lattice Simulations using Symmetry-Sign Extrapolation
260 _ _ |a Berlin
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|b Springer
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500 _ _ |a 25 pages, 12 figures
520 _ _ |a 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.
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536 _ _ |a DFG project 196253076 - TRR 110: Symmetrien und Strukturbildung in der Quantenchromodynamik (196253076)
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700 1 _ |a Luu, Tom
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700 1 _ |a Lee, Dean
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700 1 _ |a Meissner, Ulf-G.
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700 1 _ |a Epelbaum, Evgeny
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700 1 _ |a Krebs, Hermann
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700 1 _ |a Rupak, Gautam
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773 _ _ |a 10.1140/epja/i2015-15092-1
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