14 citations · 22 across the 3 of their papers we have counts for
6 papers
Many phases in a hairy box in three dimensions
Shoichiro Miyashita
In this paper, I investigate gravitational thermodynamics of the Einstein-Maxwell-scalar system in three dimensions without a cosmological constant. In the previous work by Krishna…
DSSYK at Infinite Temperature: The Flat-Space Limit and the 't Hooft Model
Shoichiro Miyashita, Yasuhiro Sekino, Leonard Susskind
In the limit of infinite radius de Sitter space becomes locally flat and the static patch tends to Rindler space. A holographic description of the static patch must result in a hol…
Gravitational and Gravitoscalar Thermodynamics
Shoichiro Miyashita
Gravitational thermodynamics and gravitoscalar thermodynamics with boundary geometry are investigated through the partition function, assuming that all Eucl…
Role of Mann Counterterm in Gravitational Energy
Shoichiro Miyashita
In 1999, R. B. Mann proposed a counterterm that is some sort of generalization of the well-known Holographic counterterm and that can eliminate the divergence of the gravitational…
Energy spectrum of a quantum spacetime with boundary
Shoichiro Miyashita
In this paper, I revisit the microcanonical partition function, or density of states (DOS), of general relativity. By using the minisuperspace path integral approximation, I direct…
Stable Singularity-free Cosmological Solutions in non-projectable Horava-Lifshitz Gravity
Mitsuhiro Fukushima, Yosuke Misonoh, Shoichiro Miyashita +1
We find stable singularity-free cosmological solutions in non-flat Friedmann-Lemaître-Robertson-Walker (FLRW) spacetime in the context of Hořava-Lifshitz (HL) theory. Although we e…