activity
20232026
most citedNew construction of a charged dipole black ring by Harrison transformation

11 citations · 17 across the 13 of their papers we have counts for

collaborators

14 papers

hep-th2026

Multi-rotating black holes with non-aligned angular momenta in 5D Kaluza-Klein theory

Shinya Tomizawa, Hideo Furugori, Jun-ichi Sakamoto +1

We present an exact solution describing multi-rotating black holes in 4D Einstein-Maxwell-dilaton theory, which can be obtained from 5D Kaluza--Klein theory via dimensional reducti…

hep-th2026

Multi-centered Myers-Perry Black Holes in Five Dimensions

Shinya Tomizawa, Jun-ichi Sakamoto, Ryotaku Suzuki

We present a new family of multi-centered rotating black hole solutions in 5D vacuum Einstein gravity, providing explicit examples of cohomogeneity-three spacetimes. It is well kno…

gr-qc2026

Fan-Wang type regular black holes in Quasi-Topological Gravity

Ren Tsuda, Ryotaku Suzuki, Shinya Tomizawa

We construct a class of regular black hole solutions of the Fan-Wang type within quasi-topological gravity (QTG) in arbitrary spacetime dimensions greater than four. In contrast to…

hep-th2025

Asymmetric dyonic multi-centered rotating black holes

Shinya Tomizawa, Jun-ichi Sakamoto, Ryotaku Suzuki

We construct an exact solution in four-dimensional Einstein-Maxwell-dilaton theory, describing multi-centered rotating black holes carrying both electric and magnetic charges, obta…

hep-th2025

Exploring non-supersymmetric black holes with multiple bubbles in five-dimensional minimal supergravity

Ryotaku Suzuki, Shinya Tomizawa

The topological censorship theorem suggests that higher dimensional black holes can possess the domain of outer communication (DOC) of nontrivial topology. In this paper, we seek f…

hep-th2024

Nonuniqueness of capped black holes: large and small bubbles

Ryotaku Suzuki, Shinya Tomizawa

We present a new non-BPS solution describing an asymptotically flat, stationary, bi-axisymmetric capped black hole in the bosonic sector of five-dimensional minimal supergravity. T…

hep-th2024★ 6 cited

New black ring with all independent conserved charges in five-dimensional minimal supergravity

Ryotaku Suzuki, Shinya Tomizawa

We present a new exact solution for a general non-BPS black ring in the bosonic sector of five-dimensional minimal supergravity. This obtained solution carries four independent con…

hep-th2024

New construction of a vacuum doubly rotating black ring by the Ehlers transformation

Ryotaku Suzuki, Shinya Tomizawa

Using the Ehlers transformation, we derive an exact solution for a doubly rotating black ring in five-dimensional vacuum Einstein theory. It is well-known that the vacuum Einstein…

hep-th2024

Solution Generation of a Capped Black Hole

Ryotaku Suzuki, Shinya Tomizawa

Utilizing the electric Harrison transformation developed in five-dimensional minimal supergravity, we construct an exact solution characterizing non-BPS charged rotating black hole…

gr-qc2024

Innermost stable circular orbits around a spinning black hole binary

Eiki Kagohashi, Ryotaku Suzuki, Shinya Tomizawa

Using the exact solution that describes multi-centered rotating black holes, recently discovered by Teo and Wan, we investigate the innermost stable circular orbit (ISCO) for massi…

hep-th2024

Static equilibrium of multi-black holes in expanding bubbles in five dimensions

Shinya Tomizawa, Ryotaku Suzuki

We investigate possible configurations for vacuum multi-black holes that maintain static equilibrium in expanding bubbles. Our analysis assumes a five-dimensional Weyl metric to de…

hep-th2024★ 11 cited

New construction of a charged dipole black ring by Harrison transformation

Ryotaku Suzuki, Shinya Tomizawa

We present an exact solution for a non-BPS charged rotating black ring endowed with a dipole charge in the bosonic sector of five-dimensional minimal supergravity. Utilizing the el…

hep-th2023

A Capped Black Hole in Five Dimensions

Ryotaku Suzuki, Shinya Tomizawa

We present the first non-BPS exact solution of an asymptotically flat, stationary spherical black hole having domain of outer communication with nontrivial topology in five-dimensi…

gr-qc2023

Causality of Photon Propagation under Dominant Energy Condition in Non-linear Electrodynamics

Shinya Tomizawa, Ryotaku Suzuki

Recently, various types of regular black hole model are reintroduced as the solution of the Einstein equations coupled with nonlinear electrodynamics (NED). In NED, it is known tha…