A nuclear matter calculation with the tensor-optimized Fermi sphere method with central interaction

DOI10.1093/PTEP/PTZ117zbMATH Open1479.81078arXiv1808.08120OpenAlexW2990581593WikidataQ127248106 ScholiaQ127248106MaRDI QIDQ5163095

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Publication date: 8 November 2021

Published in: PTEP. Progress of Theoretical and Experimental Physics (Search for Journal in Brave)

Abstract: The tensor optimized Fermi sphere (TOFS) method is applied first for the study of the property of nuclear matter using the Argonne V4' $NN$ potential. In the TOFS method, the correlated nuclear matter wave function is taken to be a power-series-type of the correlation function $F$, where $F$ can induce central, spin-isospin, tensor, etc.~correlations. This expression has been ensured by a cluster expansion theory. In the TOFS calculation, we take into account the contributions from all the many body terms arising from the product of the nuclear-matter Hamiltonian $mathcalH$ and $F$. It is found that the density dependence of the energy per particle in nuclear matter is reasonably reproduced, in comparison with other methods such as the Brueckner-Hartree-Fock (BHF) approach.

Full work available at URL: https://arxiv.org/abs/1808.08120

Mathematics Subject Classification ID

Unified quantum theories (81V22) Nuclear physics (81V35) Nuclear reactor theory; neutron transport (82D75) Fermionic systems in quantum theory (81V74)

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