Fisher Metric for Diagonalizable Quadratic Hamiltonians and Application to Phase Transitions
作者: Tsvetan VetsovRadoslav Rashkov
论文集英文名称: Proceedings of the Nineteenth International Conference on Geometry, Integrability and Quantization
来源数据库: Project Euclid
DOI: 10.7546/giq-19-2018-225-233
原始语种摘要: We derive the extended entanglement entropy and the Fisher information metric in the case of quantum models, described by time-independent diagonal quadratic Hamiltonians. Our research is conducted within the framework of Thermo field dynamics. We also study the properties of the Fisher metric invariants to identify the phase structure of the quasi-particle systems in equilibrium.
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  • framework 构架
  • entropy 平均信息量
  • metric 米制的
  • diagonal 对角线
  • derive 导出
  • entanglement 扭结
  • equilibrium 平衡
  • identify 视为同一
  • independent 独立的
  • properties 道具