934 citations · 12.9k across the 205 of their papers we have counts for
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Post-Newtonian, Quasi-Circular Binary Inspirals in Quadratic Modified Gravity
Kent Yagi, Leo C. Stein, Nicolas Yunes +1
We consider a general class of quantum gravity-inspired, modified gravity theories, where the Einstein-Hilbert action is extended through the addition of all terms quadratic in the…
Cosmology with space-based gravitational-wave detectors --- dark energy and primordial gravitational waves ---
Atsushi Nishizawa, Kent Yagi, Atsushi Taruya +1
Proposed space-based gravitational-wave (GW) detectors such as DECIGO and BBO will detect ~10^6 neutron-star (NS) binaries and determine the luminosity distances to the binaries wi…
Cosmic censorship in overcharging a Reissner-Nordström black hole via charged particle absorption
Soichiro Isoyama, Norichika Sago, Takahiro Tanaka
There is a claim that a static charged black hole (Reissner-Nordström black hole) can be overcharged by absorbing a charged test particle. If it is true, it might give a counter ex…
Chiral Phase Transitions around Black Holes
Antonino Flachi, Takahiro Tanaka
In this paper we discuss the possibility that chiral phase transitions, analogous to those of QCD, occur in the vicinity of a black hole. If the black hole is surrounded by a gas o…
Black holes in braneworld models
Norihiro Tanahashi, Takahiro Tanaka
In this review, we summarize current understandings of black hole solutions in various braneworld models, including the Arkani-Hamed-Dimopoulos-Dvali model, the Randall-Sundrum (RS…
Open inflation in the landscape
Daisuke Yamauchi, Andrei Linde, Atsushi Naruko +2
Open inflation scenario is attracting a renewed interest in the context of string landscape. Since there are a large number of metastable de Sitter vacua in string landscape, tunne…
Dominance of gauge artifact in the consistency relation for the primordial bispectrum
Takahiro Tanaka, Yuko Urakawa
The conventional cosmological perturbation theory has been performed under the assumption that we know the whole spatial region of the universe with infinite volume. This is, howev…
A note on the role of the boundary terms for the non-Gaussianity in general k-inflation
Frederico Arroja, Takahiro Tanaka
In this short note we clarify the role of the boundary terms in the calculation of the leading order tree-level bispectrum in a fairly general minimally coupled single field inflat…
Stability of Schwarzschild-like solutions in f(R,G) gravity models
Antonio De Felice, Teruaki Suyama, Takahiro Tanaka
We study linear metric perturbations around a spherically symmetric static spacetime for general f(R,G) theories, where R is the Ricci scalar and G is the Gauss-Bonnet term. We fin…
Probing the size of extra dimension with gravitational wave astronomy
Kent Yagi, Norihiro Tanahashi, Takahiro Tanaka
In Randall-Sundrum II (RS-II) braneworld model, it has been conjectured according to the AdS/CFT correspondence that brane-localized black hole (BH) larger than the bulk AdS curvat…
A covariant approach to general field space metric in multi-field inflation
Jinn-Ouk Gong, Takahiro Tanaka
We present a covariant formalism for general multi-field system which enables us to obtain higher order action of cosmological perturbations easily and systematically. The effects…