59 citations · 219 across the 13 of their papers we have counts for
16 papers
The Virasoro Bootstrap: from the desert to coupled Potts
Stefanos R. Kousvos, Alessandro Piazza, Alessandro Vichi
We develop a numerical conformal bootstrap for two-dimensional CFTs with based on Virasoro conformal blocks, computed with Zamolodchikov's recursion and optimal polynomial in…
Cusped Defects: Cusp Operator Expansion, Conformal Properties and Bootstrap Applications
Lorenzo Bianchi, Andrea Cavaglià, A. David Gutiérrez +2
We analyze general properties of cusped defect lines embedded in generic conformal field theories (CFTs). We prove that suitably defined cusp scaling operators transform like prima…
A Bootstrap Study of Confinement in AdS
Lorenzo Di Pietro, Stefanos R. Kousvos, Marco Meineri +3
Yang-Mills theory in AdS with Dirichlet boundary conditions is expected to undergo a transition as the AdS radius varies, since the boundary data is incompatible with confine…
EFT meets CFT: Multiloop renormalization of higher-dimensional operators in general theories
Johan Henriksson, Stefanos R. Kousvos, Jasper Roosmale Nepveu
The renormalization of composite operators is a fundamental aspect of quantum field theory, relevant for the description of phase transitions and high energy phenomenology. We calc…
Multi-loop spectra in general scalar EFTs and CFTs
Johan Henriksson, Franz Herzog, Stefanos R. Kousvos +1
We consider the most general effective field theory (EFT) Lagrangian with scalar fields and derivatives, and renormalise it to substantially higher loop order than existing results…
Redundancy Channels in the Conformal Bootstrap
Stefanos R. Kousvos, Andreas Stergiou
A method for obstructing symmetry enhancement in numerical conformal bootstrap calculations is proposed. Symmetry enhancement refers to situations where bootstrap studies initialis…
Exploring Replica-Potts CFTs in Two Dimensions
Stefanos R. Kousvos, Alessandro Piazza, Alessandro Vichi
We initiate a numerical conformal bootstrap study of CFTs with global symmetry. These include CFTs that can be obtained as coupled replicas of two-dimensional…
Anomalous Dimensions in Hypercubic Theories
Alexander Bednyakov, Johan Henriksson, Stefanos R. Kousvos
We perform a comprehensive perturbative study of the operator spectrum in multi-scalar theories with hypercubic global symmetry. This includes working out symmetry representations…
CFTs with Global Symmetry in 3D and the Chiral Phase Transition of QCD
Stefanos R. Kousvos, Andreas Stergiou
Conformal field theories (CFTs) with global symmetry in dimensions have been studied for years due to their potential relevance to the chiral phase transiti…
Spectrum continuity and level repulsion: the Ising CFT from infinitesimal to finite
Johan Henriksson, Stefanos R. Kousvos, Marten Reehorst
Using numerical conformal bootstrap technology we perform a non-perturbative study of the Ising CFT and its spectrum from infinitesimal to finite values of . Explo…
Bootstrapping Mixed MN Correlators in 3D
Stefanos R. Kousvos, Andreas Stergiou
The recent emergence of the modern conformal bootstrap method for the study of conformal field theories (CFTs) has enabled the revisiting of old problems in classical critical phen…
Analytic and Numerical Bootstrap of CFTs with Global Symmetry in 3D
Johan Henriksson, Stefanos R. Kousvos, Andreas Stergiou
Motivated by applications to critical phenomena and open theoretical questions, we study conformal field theories with global symmetry in spacetime dimensio…
Bootstrapping Mixed Correlators in Three-Dimensional Cubic Theories II
Stefanos R. Kousvos, Andreas Stergiou
Conformal field theories (CFTs) with cubic global symmetry in 3D are relevant in a variety of condensed matter systems and have been studied extensively with the use of perturbativ…
Bootstrapping Mixed Correlators in Three-Dimensional Cubic Theories
Stefanos R. Kousvos, Andreas Stergiou
Three-dimensional theories with cubic symmetry are studied using the machinery of the numerical conformal bootstrap. Crossing symmetry and unitarity are imposed on a set of mixed c…
Cosmological screening and the phantom braneworld model
Sourav Bhattacharya, Stefanos R Kousvos, Stylianos Romanopoulos +1
The scalar and vector cosmological perturbations at all length scales of our Universe are studied in the framework of the phantom braneworld model. The model is characterized by th…
Constraining phantom braneworld model from cosmic structure sizes
Sourav Bhattacharya, Stefanos R Kousvos
We consider the phantom braneworld model in the context of the maximum turn around radius, , of a stable, spherical cosmic structure with a given mass. The maximum…