The lowest order constrained variational method is applied to calculate the polarized symmetrical nuclear matter properties with the modern AV ${}_{18}$ potential performing microscopic calculations. Results based on the consideration of magnetic properties show no sign of phase transition to a ferromagnetic phase.The lowest order constrained variational method is applied to calculate the polarized symmetrical nuclear matter properties with the modern AV${}_{18}$ potential performing microscopic calculations. Results based on the consideration of magnetic properties show no sign of phase transition to a ferromagnetic phase.

arXiv:0809.3496Physical Review CSep 17, 200732 citations

State-dependent calculation of three-body cluster energy for nuclear matter and the validity of the lowest order constrained variational formalism

Majid Modarres, A. Rajabi, H. R. Moshfegh

It is shown that the method of lowest order constrained variational (LOCV) which is based on the cluster expansion theory is a reliable many-body technique to calculate the nuclear matter equation of state. In this respect, the state dependent correlation functions and the effective interactions which have been produced by the LOCV calculation with the Reid and \ensuremath{\Delta}-Reid soft core interactions are used to estimate the size of higher order cluster terms such as the effect of three-body cluster energy on the nuclear matter ground state energy. Finally it is shown that the LOCV normalization constraint plays a major role in the convergence of the cluster expansion and the result of LOCV calculation can be as good as more sophisticated approaches which go beyond lowest order.It is shown that the method of lowest order constrained variational (LOCV) which is based on the cluster expansion theory is a reliable many-body technique to calculate the nuclear matter equation of state. In this respect, the state dependent correlation functions and the effective interactions which have been produced by the LOCV calculation with the Reid and \ensuremath{\Delta}-Reid soft core interactions are used to estimate the size of higher order cluster terms such as the effect of three-body cluster energy on the nuclear matter ground state energy. Finally it is shown that the LOCV normalization constraint plays a major role in the convergence of the cluster expansion and the result of LOCV calculation can be as good as more sophisticated approaches which go beyond lowest order.

Physical Review CDec 13, 200742 citations

Do lowest-order approximations adequately describe nuclear matter?

Vijay R. Pandharipande, Robert B. Wiringa, B. D. Day

Physics Letters BJul 1, 197570 citations

The lowest order constrained variational method is applied to calculate the polarized symmetrical nuclear matter properties with the modern AV

{}_{18}

potential performing microscopic calculations. Results based on the consideration of magnetic properties show no sign of phase transition to a ferromagnetic phase.