作者: O. LOURENÇO , M. DUTRA , A. DELFINO , J. S. SÁ MARTINS
DOI: 10.1142/S021827180701002X
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摘要: We derive a relativistic Sommerfeld expansion for thermodynamic quantities in many-body fermionic systems. The is used to generate the equation of state Walecka model and its isotherms. find that these results are good agreement with numerical calculations, even when truncated at lowest order, low temperature regime, defined by T/xf ≪ 1. Although interesting region near liquid-gas phase transition excluded this criterion, may still usefulness study very cold nuclear matter systems, such as neutron stars.