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摘要
<jats:p> We discuss modified teleparallel gravity with function [Formula: see text] in the action, where the function depends on two arguments: torsion scalar [Formula: see text] and analogue of Gauss–Bonnet invariant [Formula: see text]. In contradistinction to usual teleparallel gravity [Formula: see text], this theory contains higher derivative terms, which may produce different instabilities. We discuss Minkowski stability problem in such kind of theories and explicitly demonstrate that for stability it must be [Formula: see text], [Formula: see text]. We apply these restrictions for the few types of functions discussed by the early authors. </jats:p>
- 出版日期2016-5-10
