On Intersecting Conformal Defects

T Shachar - arxiv preprint arxiv:2411.14543, 2024 - arxiv.org
We study the physics of 2 and 3 mutually intersecting conformal defects forming wedges and
corners in general dimension. For 2 defects we derive the beta-function of the edge …

Boundary operator expansion and extraordinary phase transition in the tricritical O (N) model

X Sun, SK Jian - arxiv preprint arxiv:2501.06287, 2025 - arxiv.org
We study the boundary extraordinary transition of a 3D tricritical $ O (N) $ model. We first
compute the mean-field Green's function with a general coupling of $|\vec\phi|^{2n} $(with …

Sphere free energy of scalar field theories with cubic interactions

S Giombi, E Himwich, A Katsevich, I Klebanov… - arxiv preprint arxiv …, 2024 - arxiv.org
The dimensional continuation approach to calculating the free energy of $ d $-dimensional
Euclidean CFT on the round sphere $ S^ d $ has been used to develop its $4-\epsilon …

A new series of 3D CFTs with global symmetry on fuzzy sphere

Z Zhou, YC He - arxiv preprint arxiv:2410.00087, 2024 - arxiv.org
The quest to discover new 3D CFTs has been intriguing for physicists. For this purpose,
fuzzy sphere reguarlisation that studies interacting quantum systems defined on the lowest …

Surprises in the Ordinary: Invariant Surface Defect in the -expansion

O Diatlyk, Z Sun, Y Wang - arxiv preprint arxiv:2411.16522, 2024 - arxiv.org
We study an $ O (N) $ invariant surface defect in the Wilson-Fisher conformal field theory
(CFT) in $ d= 4-\epsilon $ dimensions. This defect is defined by mass deformation on a two …