Spin Susceptibility in Neutron Matter from Quantum Monte Carlo Calculations
arxiv(2020)
摘要
The spin susceptibility in pure neutron matter is computed from auxiliary field diffusion Monte Carlo calculations over a wide range of densities. Calculations are performed for different spin asymmetries, using twist-averaged boundary conditions to reduce finite-size effects. The employed nuclear interactions include both the phenomenological Argonne AV8$^{\prime}$+UIX potential and local interactions derived from chiral effective field theory up to next-to-next-to-leading order.
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关键词
spin susceptibility, neutron matter, quantum Monte Carlo
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