activity
20172020
most citedTowards a -theorem in defect CFT

104 citations · 222 across the 8 of their papers we have counts for

collaborators

8 papers

hep-th2020★ 1 cited

The model with potential in

Christopher P. Herzog, Nozomu Kobayashi

We study the large limit of scalar field theory with classically marginal interaction in three dimensions in the presence of a planar boundary. This theory has an…

hep-th2020★ 3 cited

Regge OPE blocks and light-ray operators

Nozomu Kobayashi, Tatsuma Nishioka, Yoshitaka Okuyama

We consider the structure of the operator product expansion (OPE) in conformal field theory by employing the OPE block formalism. The OPE block acted on the vacuum is promoted to a…

hep-th2019★ 4 cited

The gravity dual of Lorentzian OPE blocks

Heng-Yu Chen, Lung-Chuan Chen, Nozomu Kobayashi +1

We consider the operator product expansion (OPE) structure of scalar primary operators in a generic Lorentzian CFT and its dual description in a gravitational theory with one extra…

hep-th2018★ 104 cited

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…

hep-th2018★ 36 cited

Spinning conformal defects

Nozomu Kobayashi, Tatsuma Nishioka

We consider conformal defects with spins under the rotation group acting on the transverse directions. They are described in the embedding space formalism in a similar manner to sp…

hep-th2018★ 23 cited

Observables in Inhomogeneous Ground States at Large Global Charge

Simeon Hellerman, Nozomu Kobayashi, Shunsuke Maeda +1

As a sequel to previous work, we extend the study of the ground state configuration of the , Wilson-Fisher conformal model. In this work, we prove that for generic rati…

hep-th2017★ 24 cited

Operator product expansion for conformal defects

Masayuki Fukuda, Nozomu Kobayashi, Tatsuma Nishioka

We study the operator product expansion (OPE) for scalar conformal defects of any codimension in CFT. The OPE for defects is decomposed into "defect OPE blocks", the irreducible re…

hep-th2017★ 27 cited

A Note on Inhomogeneous Ground States at Large Global Charge

Simeon Hellerman, Nozomu Kobayashi, Shunsuke Maeda +1

In this note we search for the ground state, in infinite volume, of the Wilson-Fisher conformal model, at nonzero values of the two independent charge densities $ρ_{1,…