Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- The University of TokyoJP1.8k papers
- University of TsukubaJP1.7k papers
- The Ohio State UniversityUS1.7k papers
- University of MichiganUS1.6k papers
- University of GenevaCH1.6k papers
- Yale UniversityUS1.6k papers
- University of ChicagoUS1.6k papers
- Centre National de la Recherche ScientifiqueFR1.6k papers
- Lawrence Berkeley National LaboratoryUS1.6k papers
- Argonne National LaboratoryUS1.6k papers
- University of BolognaIT1.6k papers
- University of New MexicoUS1.6k papers
10 papers · 2 filters
Can we distinguish black holes with electric and magnetic charges from quasinormal modes?
Antonio De Felice, Shinji Tsujikawa
We compute the quasinormal modes of static and spherically symmetric black holes (BHs) with electric and magnetic charges. For the electrically charged case, the dynamics of pertur…
Gravitational-wave constraints on scalar-tensor gravity from a neutron star and black-hole binary GW200115
Hiroki Takeda, Shinji Tsujikawa, Atsushi Nishizawa
In nonminimally coupled theories where a scalar field is coupled to the Ricci scalar, neutron stars (NSs) can have scalar charges through an interaction with matter mediated by gra…
Starobinsky inflation with a quadratic Weyl tensor
Antonio De Felice, Ryodai Kawaguchi, Kotaro Mizui +1
In Starobinsky inflation with a Weyl squared Lagrangian , where is a coupling constant, we study the linear stability of cosmological perturbations on a spatially flat F…
Stability of Schwarzshild black holes in quadratic gravity with Weyl curvature domination
Antonio De Felice, Shinji Tsujikawa
We study the linear stability of static and spherically symmetric (SSS) black holes (BHs) in the presence of a Weyl-squared curvature besides an Einstein-Hilbert term in the action…
Enhancement of quantum gravity signal in an optomechanical experiment
Youka Kaku, Tomohiro Fujita, Akira Matsumura
No experimental evidence of the quantum nature of gravity has been observed yet and a realistic setup with improved sensitivity is eagerly awaited. We find two effects, which can s…
Excluding static and spherically symmetric black holes in Einsteinian cubic gravity with unsuppressed higher-order curvature terms
Antonio De Felice, Shinji Tsujikawa
Einsteinian cubic gravity is a higher-order gravitational theory in which the linearized field equations of motion match Einstein's equations on a maximally symmetric background. T…
Dynamics of Binary System around Supermassive Black Hole
Kei-ichi Maeda, Priti Gupta, Hirotada Okawa
We discuss motion of a binary system around a supermassive black hole. Using Fermi-Walker transport, we construct a local inertial reference frame and set up a Newtonian binary sys…
Black holes in a new gravitational theory with trace anomalies
Shinji Tsujikawa
In a new gravitational theory with the trace anomaly recently proposed by Gabadadze, we study the existence of hairy black hole solutions on a static and spherically symmetric back…
Coupled vector Gauss-Bonnet theories and hairy black holes
Katsuki Aoki, Shinji Tsujikawa
We study vector-tensor theories in which a 4-dimensional vector field is coupled to a vector quantity , which is expressed in terms of and a metric tensor $…
Black hole perturbations in Maxwell-Horndeski theories
Ryotaro Kase, Shinji Tsujikawa
We study the linear stability of black holes in Maxwell-Horndeski theories where a gauge-invariant vector field is coupled to a scalar field with the Lagrangian of full Horn…