284 citations · 2.3k across the 55 of their papers we have counts for
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A Proof Of Ghost Freedom In de Rham-Gabadadze-Tolley Massive Gravity
Mehrdad Mirbabayi
We identify different helicity degrees of freedom of Fierz-Paulian massive gravity around generic backgrounds. We show that the two-parameter family proposed by de Rham, Gabadadze,…
(Small) Resonant non-Gaussianities: Signatures of a Discrete Shift Symmetry in the Effective Field Theory of Inflation
Siavosh R. Behbahani, Anatoly Dymarsky, Mehrdad Mirbabayi +1
We apply the Effective Field Theory of Inflation to study the case where the continuous shift symmetry of the Goldstone boson πis softly broken to a discrete subgroup. This case in…
Stars and Black Holes in Massive Gravity
Andrei Gruzinov, Mehrdad Mirbabayi
Generically, massive gravity gives a non-unique gravitational field around a star. For a special family of massive gravity theories, we show that the stellar gravitational field is…
Generalized Framework for Auxiliary Extra Dimensions
Lasha Berezhiani, Mehrdad Mirbabayi
The theory of gravity with an auxiliary extra dimension is known to give the ghost-free cubic completion of the Fierz-Pauli mass term in the decoupling limit. Our work generalizes…