k -essence emergent spacetime as a generalized Vaidya geometry
نویسندگان
چکیده
منابع مشابه
k−Essence, superluminal propagation, causality and emergent geometry
The k-essence theories admit in general the superluminal propagation of the perturbations on classical backgrounds. We show that in spite of the superluminal propagation the causal paradoxes do not arise in these theories and in this respect they are not less safe than General Relativity.
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2020
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.101.124034