Zobrazeno 1 - 10
of 1 288
pro vyhledávání: '"Sasaki Shin"'
We investigate T-duality transformation on an almost bi-hermitian space with torsion. By virtue of the Buscher rule, we completely describe not only the covariant derivative of geometrical objects but also the Nijenhuis tensor. We apply this descript
Externí odkaz:
http://arxiv.org/abs/2409.19931
Autor:
Nitta, Muneto, Sasaki, Shin
Publikováno v:
JHEP10(2024)178
A solitonic ground state called a chiral soliton lattice (CSL) is realized in a supersymmetric theory with background magnetic field and finite chemical potential. To this end, we construct, in the superfield formalism, a supersymmetric chiral sine-G
Externí odkaz:
http://arxiv.org/abs/2404.12066
Autor:
Mori, Haruka, Sasaki, Shin
Publikováno v:
JHEP06(2024)096
We study an analogue of the Drinfel'd double for algebroids associated with the $O(D,D+n)$ gauged double field theory (DFT). We show that algebroids defined by the twisted C-bracket in the gauged DFT are built out of a direct sum of three (twisted) L
Externí odkaz:
http://arxiv.org/abs/2402.03895
Publikováno v:
Phys. Lett. B 849 (2024) 138425
We study geometries for the NS5-, the KK5- and the $5^2_2$-branes of codimension two in type II and heterotic string theories. The geometries are classified by monodromies that each brane has. They are the $B$-, the general coordinate and the $\beta$
Externí odkaz:
http://arxiv.org/abs/2312.03358
Publikováno v:
JHEP05(2023)220
We study the $O(D,D+n)$ generalized metric and the gauge symmetries in the gauged double field theory (DFT) in view of current algebras and sigma models. We show that the $O(D,D+n)$ generalized metric in the gauged DFT is consistent with the heteroti
Externí odkaz:
http://arxiv.org/abs/2212.06476
We develop a general framework to compute photometric variations induced by the oblique rotation of a star with an axisymmetric inhomogeneous surface. We apply the framework to compute lightcurves of white dwarfs adopting two simple models of their s
Externí odkaz:
http://arxiv.org/abs/2210.05421
Autor:
Inoue, Atsuki, Sasaki, Shin
Publikováno v:
Eur. Phys. J. C (2022) 82:1156
We study the vacuum structures of four-dimensional $\mathcal{N} = 1$ old minimal supergravity with higher derivative corrections. We find that $\mathcal{N} = 1$ supergravity with Riemann curvature square corrections and higher derivative matter chira
Externí odkaz:
http://arxiv.org/abs/2209.12567
We present an analytic model of the lightcurve variation for stars with non-evolving starspots on a differentially rotating surface. The Fourier coefficients of the harmonics of the rotation period are expressed in terms of the latitude of the spot,
Externí odkaz:
http://arxiv.org/abs/2205.04836
Autor:
Liu, Yanxiang, Zheng, Tianfang, Xu, Yu-Ting, Li, Aijun, Xu, Hai, Gao, Yu, Wang, Xiao-Feng, Fujii, Ritsuko, Sasaki, Shin-ichi
Publikováno v:
In Applied Surface Science 1 March 2025 684
Publikováno v:
JHEP06(2022)119
We investigate doubled (generalized) complex structures in $2D$-dimensional Born geometries where T-duality symmetry is manifestly realized. We show that K\"{a}hler, hyperk\"{a}hler, bi-hermitian and bi-hypercomplex structures of spacetime are implem
Externí odkaz:
http://arxiv.org/abs/2203.03272