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From the previous chapter, it is understood that the main thermodynamic potential \(\Omega =-T\ln Z\) of the many-particle Bose system can not be calculated exactly even in the case of simple contact interaction. In the framework of the path integral formalism the reason for such failure is that, the functional integral.

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Optimized Perturbation Theory

  • 章节

  • 发表日期：

    2026年

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  • Abdulla Rakhimov,
  • Shukhrat Mardonov

摘要

From the previous chapter, it is understood that the main thermodynamic potential \(\Omega =-T\ln Z\) of the many-particle Bose system can not be calculated exactly even in the case of simple contact interaction. In the framework of the path integral formalism the reason for such failure is that, the functional integral.