Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Sugiyama, Katsuyuki"'
Photon spheres are the characteristic of general black holes, thus are a suitable touchstone for the emergence of gravitational spacetime in the AdS/CFT correspondence. We provide a spectral analysis of an AdS Schwarzschild black hole near its photon
Externí odkaz:
http://arxiv.org/abs/2307.00237
Autor:
Sugiyama, Katsuyuki, Yoshida, Yutaka
We study three dimensional $\mathcal{N}=2$ supersymmetric theories on $I \times M_2$ with 2d $\mathcal{N}=(0,2)$ boundary conditions at the boundaries $\partial (I \times M_2)=M_2 \sqcup M_2$, where $M_2=\mathbb{C}$ or $ T^2$. We introduce supersymme
Externí odkaz:
http://arxiv.org/abs/2007.07664
We compute the topological partition function (twisted index) of $\mathcal{N}=2$ $U(N)$ Chern-Simons theory with an adjoint chiral multiplet on $\Sigma_g \times S^1$. The localization technique shows that the underlying Frobenius algebra is the equiv
Externí odkaz:
http://arxiv.org/abs/1806.03039
Autor:
Yoshida, Yutaka, Sugiyama, Katsuyuki
Publikováno v:
PTEP 2020 (2020) 11, 113B02
We study three dimensional $\mathcal{N}=2$ supersymmetric Chern-Simons-Matter theories on the direct product of a circle and a two dimensional hemisphere ($S^1 \times D^2$) with specified boundary conditions by the method of localization. We construc
Externí odkaz:
http://arxiv.org/abs/1409.6713
Publikováno v:
Nucl.Phys.B753:295-312,2006
We consider a gauged linear sigma model in two dimensions with Grassmann odd chiral superfields. We investigate the Konishi anomaly of this model and find out the condition for realization of superconformal symmetry on the world-sheet. When this cond
Externí odkaz:
http://arxiv.org/abs/hep-th/0605021
Autor:
Seki, Shigenori, Sugiyama, Katsuyuki
We formulate a gauged linear sigma model on a supermanifold. The structure of classical vacua is investigated and one-loop corrections are calculated for an auxiliary D-field. We find out a constraint for the one-loop divergence to vanish, which is c
Externí odkaz:
http://arxiv.org/abs/hep-th/0503074
Autor:
Nakayama, Noriko, Sugiyama, Katsuyuki
Publikováno v:
Phys.Lett. B607 (2005) 306-316
A new class of non-compact Kahler backgrounds accompanied by a non-constant dilaton field is constructed as a supergravity solution. It is interpreted as a complex line bundle over a base manifold comprising of a combination of arbitrary coset spaces
Externí odkaz:
http://arxiv.org/abs/hep-th/0411143
Autor:
Nakayama, Noriko, Sugiyama, Katsuyuki
Publikováno v:
Phys.Rev. D70 (2004) 066003
We study D-branes of N=2 supersymmetric sigma models. Supersymmetric nonlinear sigma models with 2-dimensional target space have D0,D1,D2-branes, which are realized as A-,B-type supersymmetric boundary conditions on the worldsheet. When we embed the
Externí odkaz:
http://arxiv.org/abs/hep-th/0404227
Publikováno v:
Nucl.Phys. B669 (2003) 78-102
We discuss partition functions of N=(4,4) type IIA string theory on the pp-wave background. This theory is shown to be modular invariant. The boundary states are constructed and possible D-brane instantons are classified. Then we calculate cylinder a
Externí odkaz:
http://arxiv.org/abs/hep-th/0306087
Publikováno v:
Phys.Rev. D68 (2003) 026001
We consider the ground state of supermembrane on the maximally supersymmetric pp-wave background by using the quantum-mechanical procedure of de Wit-Hoppe-Nicolai. In the pp-wave case the ground state has non-trivial structure even in the zero-mode H
Externí odkaz:
http://arxiv.org/abs/hep-th/0209081