282 citations · 1.4k across the 30 of their papers we have counts for
16 papers · 1 filter
Monopole-fermion scattering and varying Fock space
Yuta Hamada, Teppei Kitahara, Yoshiki Sato
We propose a four-dimensional interpretation of the outgoing state of the scattering of a massless fermion off a Dirac monopole. It has been known that such a state has fractional…
Complexity in a moving mirror model
Yoshiki Sato
In a two-dimensional conformal field theory with a moving mirror, known as a moving mirror model, the time evolution of the entanglement entropy shows a Page like curve. This impli…
Free energy and defect -theorem in free fermion
Yoshiki Sato
We describe a -dimensional conformal defect of a free Dirac fermion on a -dimensional flat space as boundary conditions on a conformally equivalent space $\mathbb{H}^{p+1} \t…
Free energy and defect -theorem in free scalar theory
Tatsuma Nishioka, Yoshiki Sato
We describe conformal defects of dimensions in a free scalar theory on a -dimensional flat space as boundary conditions on the conformally flat space $\mathbb{H}^{p+1}\times…
Boundary entropy under ambient RG flow in the AdS/BCFT model
Yoshiki Sato
We discuss the change of the boundary entropy under an ambient renormalization group flow. We use conformal perturbation theory to calculate the change of the boundary entropy for…
Does Boundary Distinguish Complexities?
Yoshiki Sato, Kento Watanabe
Recently, Chapman et al. argued that holographic complexities for defects distinguish action from volume. Motivated by their work, we study complexity of quantum states in conforma…
Towards a -theorem in defect CFT
Nozomu Kobayashi, Tatsuma Nishioka, Yoshiki Sato +1
We explore a -theorem in defect conformal field theories (DCFTs) that unify all the known conjectures and theorems until now. We examine as a candidate -function the addition…
Conformal Manifolds with Boundaries or Defects
Andreas Karch, Yoshiki Sato
We discuss conformal manifolds for conformal field theories with boundaries or defects. Using conformal perturbation theory we derive constraints on coefficients appearing in the b…
More on Boundary Holographic Witten Diagrams
Yoshiki Sato
In this paper we discuss geodesic Witten diagrams in general holographic conformal field theories with boundary or defect. In boundary or defect conformal field theory, two-point f…
Boundary Holographic Witten Diagrams
Andreas Karch, Yoshiki Sato
In this paper we discuss geodesic Witten diagrams in generic holographic conformal field theories with boundary or defect. Boundary CFTs allow two different decompositions of two-p…
A holographic description of the Schwinger effect in a confining gauge theory
Daisuke Kawai, Yoshiki Sato, Kentaroh Yoshida
This is a review of the recent progress on a holographic description of the Schwinger effect. In 2011, Semenoff and Zarembo proposed a scenario to study the Schwinger effect in the…
The Schwinger pair production rate in confining theories via holography
Daisuke Kawai, Yoshiki Sato, Kentaroh Yoshida
We study the Schwinger pair production in confining theories. The production rate in an external electric field E is numerically evaluated by using the holographic description. The…
Universal aspects of holographic Schwinger effect in general backgrounds
Yoshiki Sato, Kentaroh Yoshida
We consider universal aspects of a holographic Schwinger effect in general backgrounds with an external homogeneous electric field. The argument is based on the potential analysis…
Holographic Schwinger effect in confining phase
Yoshiki Sato, Kentaroh Yoshida
We consider the Schwinger effect in confining phase by using a holographic setup. The potential analysis is performed for the confining D3-brane and D4-brane backgrounds. We find t…
Potential Analysis in Holographic Schwinger Effect
Yoshiki Sato, Kentaroh Yoshida
We analyze electrostatic potentials in the holographic Schwinger effect. The potential barrier for the pair production is estimated by a static potential consisting of static mass…
Holographic description of the Schwinger effect in electric and magnetic fields
Yoshiki Sato, Kentaroh Yoshida
We consider a generalization of the holographic Schwinger effect proposed by Semenoff and Zarembo to the case with constant electric and magnetic fields. There are two ways to turn…