2.4k citations · 12k across the 222 of their papers we have counts for
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No further gravitational wave modes in gravity
Kazuharu Bamba, Salvatore Capozziello, Mariafelicia De Laurentis +2
We explore the possibility of further gravitational wave modes in gravity, where is the torsion scalar in teleparallelism. It is explicitly demonstrated that gravitation…
Cosmology and Stability in Scalar-Tensor bigravity
Kazuharu Bamba, Yusuke Kokusho, Shin'ichi Nojiri +1
The bigravity models coupled with two scalar fields are constructed. We show that a wide class of the expansion history of the universe, especially corresponding to dark energy and…
Cosmological investigations of (extended) nonlinear massive gravity schemes with non-minimal coupling
K. Bamba, Md. Wali Hossain, R. Myrzakulov +2
In this paper we investigate the case of non-minimal coupling in the (extended) nonlinear massive gravity theories. We first consider massive gravity in the Brans-Dicke background…
Bounce cosmology from gravity and bigravity
Kazuharu Bamba, Andrey N. Makarenko, Alexandr N. Myagky +2
We reconstruct gravity models with exponential and power-law forms of the scale factor in which bounce cosmology can be realized. We explore the stability of the reconstruct…
Conformal symmetry and accelerating cosmology in teleparallel gravity
Kazuharu Bamba, Sergei D. Odintsov, Diego Sáez-Gómez
We discuss conformal issues of pure and extended teleparallel gravity. In particular, we present formulations of conformal transformation in teleparallel gravity. Furthermore, we p…
Large-scale magnetic fields from inflation in teleparallel gravity
Kazuharu Bamba, Chao-Qiang Geng, Ling-Wei Luo
Generation of large-scale magnetic fields in inflationary cosmology is studied in teleparallelism, where instead of the scalar curvature in general relativity, the torsion scalar d…