30 citations · 41 across the 8 of their papers we have counts for
8 papers
Bridging dS/CFT and Celestial Holography via Ward-Takahashi Identities
Hideo Furugori, Naoki Ogawa, Sotaro Sugishita +1
In 2507.17558, we provide a map from a scalar theory on -dimensional Minkowski spacetime to a scalar theory with a continuous mass spectrum on -dimensional de Sitter…
Flat Space Holography via AdS/BCFT
Peng-Xiang Hao, Naoki Ogawa, Tadashi Takayanagi +1
In this paper, we study a new class of AdS/BCFT setups, where the world-volumes of end-of-the-world branes (EOW branes) are given by flat spaces, to explore flat space holography f…
Celestial Holography meets dS/CFT
Hideo Furugori, Naoki Ogawa, Sotaro Sugishita +1
We provide a concrete link between celestial amplitudes and cosmological correlators. We first construct a map from quantum field theories (QFTs) in -dimensional Euclidean s…
Probing de Sitter Space Using CFT States
Kazuki Doi, Naoki Ogawa, Kotaro Shinmyo +2
In this paper we construct CFT states describing a putative holographic dual to local excitations in the three-dimensional de Sitter space (dS), called the bulk local states. We fi…
Celestial CFT from -WZW Model
Naoki Ogawa, Shunta Takahashi, Takashi Tsuda +1
Recently, there has been a growing interest in celestial holography, which is holography in asymptotically flat spacetimes. This holographic duality exhibits numerous mysterious an…
Celestial two-point functions and rectified dictionary
Hideo Furugori, Naoki Ogawa, Sotaro Sugishita +1
A naive celestial dictionary causes massless two-point functions to take the delta-function forms in the celestial conformal field theory (CCFT). We rectify the dictionary, involvi…
Soft hair, dressed coordinates and information loss paradox
Francesco Di Filippo, Naoki Ogawa, Shinji Mukohyama +1
Understanding the dynamics of soft hair might shine some light on the information loss paradox. In this paper, we introduce a new coordinate system, dressed coordinates, in order t…
Wedge Holography in Flat Space and Celestial Holography
Naoki Ogawa, Tadashi Takayanagi, Takashi Tsuda +1
In this paper, we study codimension two holography in flat spacetimes, based on the idea of the wedge holography. We propose that a region in a dimensional flat spacetime sur…