742 citations · 1.4k across the 26 of their papers we have counts for
7 papers · 1 filter
Scalarized black holes in the presence of the coupling to Gauss-Bonnet gravity
Masato Minamitsuji, Taishi Ikeda
In this paper, we study static and spherically symmetric black hole (BH) solutions in the scalar-tensor theories with the coupling of the scalar field to the Gauss-Bonnet (GB) term…
Electromagnetic emission from axionic clouds and the quenching of superradiant instabilities
Taishi Ikeda, Richard Brito, Vitor Cardoso
The nature of dark matter is one of the longest-standing puzzles in science. Axions or axion-like particles are a key possibility, and arise in mechanisms to solve the strong CP pr…
Axionic instabilities and new black hole solutions
Mateja Boskovic, Richard Brito, Vitor Cardoso +2
The coupling between scalar and vector fields has a long and interesting history. Axions are one key possibility to solve the strong CP problem and axion-like particles could be on…
Gravitational Collapse of a Massless Scalar Field in a Periodic Box
Chul-Moon Yoo, Taishi Ikeda, Hirotada Okawa
Gravitational collapse of a massless scalar field with the periodic boundary condition in a cubic box is reported. This system can be regarded as a lattice universe model. We const…
Black holes, gravitational waves and fundamental physics: a roadmap
Leor Barack, Vitor Cardoso, Samaya Nissanke +203
The grand challenges of contemporary fundamental physics---dark matter, dark energy, vacuum energy, inflation and early universe cosmology, singularities and the hierarchy problem-…
Remarks on the maximum luminosity
Vitor Cardoso, Taishi Ikeda, Christopher J. Moore +1
The quest for fundamental limitations on physical processes is old and venerable. Here, we investigate the maximum possible power, or luminosity, that any event can produce. We sho…
Chameleon Field in a Spherical Shell System
Tomohiro Nakamura, Taishi Ikeda, Ryo Saito +1
We investigate the validity of screening mechanism of the fifth force for chameleon field in highly inhomogeneous density profile. For simplicity, we consider a static and spherica…