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Dirac's 'Fine-Tuning Problem': A Constructive Use of Anachronism?

机译:狄拉克的“微调问题”:时代性的建设性使用?

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摘要

In order to shed light on contemporary arguments about "fine-tuning" in cosmology, I examine a possible historical precedent for fine-tuning from the early years of Quantum Electrodynamics: the divergent self-energy of the electron in Dirac's theory. I argue that viewing this problem as a fine-tuning problem involves an anachronistic reconstruction, but that such reconstructions can be philosophically useful so long as they are not confused with real historical understanding. I relate how, historically, this problem really was conceived, and show how one important step toward its solution drew upon an interpretation of Dirac's formalism in terms of "hole theory." In light of the subsequent demise of hole theory, I argue that my anachronistic reconstruction can serve as a cautionary tale that should considerably weaken the conclusions that might otherwise be drawn from attempts to give theistic or multi-verse solutions to cosmological fine-tuning problems.
机译:为了阐明当代关于宇宙学中“微调”的论点,我考察了量子电动力学早期的一种微调的可能的历史先例:狄拉克理论中电子的发散自能。我认为将这个问题视为微调问题涉及过时的重建,但是只要不与真实的历史理解相混淆,这种重建就可以在哲学上有用。我讲述了这个问题在历史上是如何真正构思出来的,并展示了朝着解决方案迈出的重要一步是如何用“孔理论”来解释狄拉克形式主义的。鉴于随后的空洞理论的消亡,我认为我过时的重建可以作为一个警告性的故事,应该大大削弱得出的结论,否则这些结论可能是通过为宇宙学的微调问题提供有神论的或多诗句的解决方案而得出的。

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  • 来源
    《Perspectives on science》 |2012年第4期|476-503|共28页
  • 作者

    Kent W. Staley;

  • 作者单位

    Saint Louis University;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 入库时间 2022-08-18 02:24:19

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