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arXiv 1910.04880gr-qcquant-ph
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关于Rindler和Friedmann时空中的不确定原理

On the uncertainty principle in Rindler and Friedmann spacetimes

Thomas Schürmann

摘要:

我们修正了Dabrowski和Wagner在[9]中讨论的Rindler和Friedmann时空的扩展不确定关系。我们揭示了这些结果是最近在[10]中针对一般常曲率三维空间导出的不变不确定关系的坐标相关表达式。此外,我们还证明了[9]中动量的非零最小标准差只是由于坐标系选择不当而产生的伪影,这种伪影可以用测地线完备化的标准变元来消除.

英文摘要:

We revise the extended uncertainty relations for the Rindler and Friedmann spacetimes recently discussed by Dabrowski and Wagner in [9]. We reveal these results to be coordinate dependent expressions of the invariant uncertainty relations recently derived for general 3-dimensional spaces of constant curvature in [10]. Moreover, we show that the non-zero minimum standard deviations of the momentum in [9] are just artifacts caused by an unfavorable choice of coordinate systems which can be removed by standard arguments of geodesic completion.

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