159 citations · 1.6k across the 48 of their papers we have counts for
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gr-qc2015★ 5 cited
The most general second-order field equations of bi-scalar-tensor theory in four dimensions
Seiju Ohashi, Norihiro Tanahashi, Tsutomu Kobayashi +1
The Horndeski theory is known as the most general scalar-tensor theory with second-order field equations. In this paper, we explore the bi-scalar extension of the Horndeski theory.…
hep-th2015★ 62 cited
Cosmology in bimetric theory with an effective composite coupling to matter
A. Emir Gumrukcuoglu, Lavinia Heisenberg, Shinji Mukohyama +1
We study the cosmology of bimetric theory with a composite matter coupling. We find two possible branches of background evolution. We investigate the question of stability of cosmo…