标题： 时空是弯曲的吗？ 评估广义相对论和电平行引力的未确定性 显示英文标题

标题： Is spacetime curved? Assessing the underdetermination of general relativity and teleparallel gravity

摘要： 关于广义相对论（GR）的实在性似乎意味着关于时空曲率的实在性。 广义相对论的平行传输等价形式（TEGR）的存在对此提出了质疑，因为（a）TEGR是在具有挠率但平坦的时空中设定的，（b）TEGR在经验上等价于GR。 Knox（2011）声称GR和TEGR之间不存在真正的未确定性；我们通过隔离并处理她各自的论点来质疑这一判决。 此外，我们预见到并对TEGR的挠率时空的实在性提出了两个进一步的担忧，我们将这两个问题称为“可操作性问题”和“可视化问题”。 显示英文摘要

摘要： Realism about general relativity (GR) seems to imply realism about spacetime curvature. The existence of the teleparallel equivalent of general relativity (TEGR) calls this into question, for (a) TEGR is set in a torsionful but flat spacetime, and (b) TEGR is empirically equivalent to GR. Knox (2011) claims that there is no genuine underdetermination between GR and TEGR; we call this verdict into question by isolating and addressing her individual arguments. In addition, we anticipate and evaluate two further worries for realism about the torsionful spacetimes of TEGR, which we call the "problem of operationalisability" and the "problem of visualisability".