Entropy, complexity and disequilibrium in compact stars

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• 作者：M.G.B. de Avellar ; ^{marcavel@astro.iag.usp.br} ; J.E. Horvath ^{foton@astro.iag.usp.br}
• 关键词：Information entropy ; Complexity ; Self-organization ; Neutron stars ; Strange stars ; Equation of state
• 刊名：Physics Letters A
• 出版年：2012
• 期刊代码：57_03759601
• 类别：ph
• 出版时间：27 February, 2012
• 卷：376
• 期：12-13
• 页码：1085-1089
• 文件大小：205 K

摘要

We used the statistical measurements of information entropy, disequilibrium and complexity to infer a hierarchy of equations of state for two types of compact stars from the broad class of neutron stars, namely, with hadronic composition and with strange quark composition. Our results show that, since order costs energy, Nature would favor the exotic strange stars even though the question of how to form the strange stars cannot be answered within this approach.