40 citations · 83 across the 3 of their papers we have counts for
9 papers
Defect branes as Alice strings
Takashi Okada, Yuho Sakatani
There exist various defect-brane backgrounds in supergravity theories which arise as the low energy limit of string theories. These backgrounds typically have non-trivial monodromi…
Emergent bubbling geometries in the plane wave matrix model
Yuhma Asano, Goro Ishiki, Takashi Okada +1
The gravity dual geometry of the plane wave matrix model is given by the bubbling geometry in the type IIA supergravity, which is described by an axially symmetric electrostatic sy…
Exact results for perturbative partition functions of theories with SU(2|4) symmetry
Yuhma Asano, Goro Ishiki, Takashi Okada +1
In this paper, we study the theories with SU(2|4) symmetry which consist of the plane wave matrix model (PWMM), super Yang-Mills theory (SYM) on RxS^2 and SYM on RxS^3/Z_k. The las…
Rotating string in doubled geometry with generalized isometries
Toru Kikuchi, Takashi Okada, Yuho Sakatani
In this paper, we first construct a globally well-defined non-geometric background which contains several branes in type II string theory compactified on a 7-torus. One of these br…
Large-N reduction for N=2 quiver Chern-Simons theories on S^3 and localization in matrix models
Yuhma Asano, Goro Ishiki, Takashi Okada +1
We study reduced matrix models obtained by the dimensional reduction of N=2 quiver Chern-Simons theories on S^3 to zero dimension and show that if a reduced model is expanded aroun…
Solving the Naturalness Problem by Baby Universes in the Lorentzian Multiverse
Hikaru Kawai, Takashi Okada
We propose a solution of the naturalness problem in the context of the multiverse wavefunction without the anthropic argument. If we include microscopic wormhole configurations in…