Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Miyaji, Masamichi"'
Autor:
Miyaji, Masamichi
We study the spectrum of the interior length and the horizon timeshift of a two-sided black hole by constructing non-perturbative length and timeshift operators in Jackiew-Teitelboim gravity. We first construct projection operators onto the fixed len
Externí odkaz:
http://arxiv.org/abs/2410.20662
Autor:
Miyaji, Masamichi, Yano, Kazuyoshi
The interior of a pure-state black hole is known to be reconstructed from the Petz map by collecting a sufficiently large amount of the emitted Hawking radiation. This was established based on the Euclidean replica wormhole, which comes from an ensem
Externí odkaz:
http://arxiv.org/abs/2311.02881
Autor:
Bousso, Raphael, Miyaji, Masamichi
We use the gravitational path integral (GPI) to compute the fluctuations of the Hawking radiation entropy around the Page curve, in a two-dimensional model introduced by Penington \emph{et al}. Before the Page time, we find that $\delta S = e^{-S}/\s
Externí odkaz:
http://arxiv.org/abs/2307.13920
Autor:
Miyaji, Masamichi, Murdia, Chitraang
Publikováno v:
J. High Energ. Phys. 2022, 123 (2022)
In this paper, we propose a new gravity dual for a $2$d BCFT with two conformal boundaries by introducing a defect that connects the two End-of-the-World branes. We demonstrate that the BCFT dual to this bulk model exhibits a richer lowest spectrum.
Externí odkaz:
http://arxiv.org/abs/2208.13783
Autor:
Miyaji, Masamichi
We consider spacetime initiated by a finite-sized initial boundary as a generalization of the Hartle-Hawking no-boundary state. We study entanglement entropy of matter state prepared by such spacetime. We find that the entanglement entropy for large
Externí odkaz:
http://arxiv.org/abs/2109.03830
Autor:
Miyaji, Masamichi
0048
甲第21567号
理博第4474号
新制||理||1642(附属図書館)
学位規則第4条第1項該当
Doctor of Science
Kyoto University
DFAM
甲第21567号
理博第4474号
新制||理||1642(附属図書館)
学位規則第4条第1項該当
Doctor of Science
Kyoto University
DFAM
Externí odkaz:
http://hdl.handle.net/2433/242605
We study overlaps between two regularized boundary states in conformal field theories. Regularized boundary states are dual to end of the world branes in an AdS black hole via the AdS/BCFT. Thus they can be regarded as microstates of a single sided b
Externí odkaz:
http://arxiv.org/abs/2103.06893
Publikováno v:
Phys. Rev. D 102, 086009 (2020)
Recent work has demonstrated the need to include contributions from entanglement islands when computing the entanglement entropy in QFT states coupled to regions of semiclassical gravity. We propose a new formula for the reflected entropy that includ
Externí odkaz:
http://arxiv.org/abs/2006.10754
Autor:
Kusuki, Yuya, Miyaji, Masamichi
Publikováno v:
Phys. Rev. Lett. 124, 061601 (2020)
We study entanglement entropy after a double local quench in two-dimensional conformal field theories (CFTs), with any central charge $c>1$. In the holographic CFT, such a state with double-excitation is dual to an AdS space with two massive particle
Externí odkaz:
http://arxiv.org/abs/1908.03351
Autor:
Kusuki, Yuya, Miyaji, Masamichi
We explore the structures of light cone and Regge limit singularities of $n$-point Virasoro conformal blocks in $c>1$ two-dimensional conformal field theories with no chiral primaries, using fusion matrix approach. These CFTs include not only hologra
Externí odkaz:
http://arxiv.org/abs/1905.02191