Phase Transition of Hot Neutron Matter to pi(0) -Condensed State

Details Phase Transition of Hot Neutron Matter to pi(0) -Condensed State Phase Transition of Hot Neutron Matter to pi(0) -Condensed State

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pthph..86...57t&link_type=abstract

Progress of Theoretical Physics, Vol. 86, No. 1, pp. 57-71

Physics

3

Scientific paper

We investigate the equation of state (EOS) of hot neutron matter with pi(0) -condensed state on the basis of the Alternating-Layer-Spin model by solving the Hartree-Fock equation at finite temperature. We find that the phase transition to pi(0) -condensed state is suppressed considerably with temperature. We first calculate the entropy and specific heat of pi(0) -condensed state and find that they are much lower than those of normal state. We also find that the effective mass of nucleons in normal and pi(0) -condensed state is almost independent of temperature. The application to supernova explosions is discussed in detail, especially the evolution of the collapsing core along the iso-entropy line and its effects on the pressure.

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