Regular Article - Theoretical Physics
On the uncertainty principle in Rindler and Friedmann spacetimes
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Accepted: 29 January 2020
Published online: 17 February 2020
We revise the extended uncertainty relations for the Rindler and Friedmann spacetimes recently discussed by Dabrowski and Wagner in . 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 . Moreover, we show that the non-zero minimum standard deviations of the momentum in  are just artifacts caused by an unfavorable choice of coordinate systems which can be removed by standard arguments of geodesic completion.
© The Author(s), 2020