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arxiv: 1502.00106 · v2 · pith:UPBS3EN4new · submitted 2015-01-31 · ✦ hep-th

Counting ghosts in the "ghost-free" non-local gravity

Ilya L. Shapiro This is my paper
classification ✦ hep-th
keywords non-localghostsgravitylevelmassivequantumtheoryamount
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In the recently proposed non-local theory of quantum gravity one can avoid massive tensor ghosts at the tree level by a special choice of the non-local form factor between the two Ricci tensors. We show that at the quantum level this theory has an infinite amount of massive unphysical states, mostly corresponding to complex poles.

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