165 citations · 1.1k across the 27 of their papers we have counts for
28 papers
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…
Conformal defects and Goldstone bosons in Anti-de Sitter space
Lorenzo Bianchi, Elia de Sabbata, Marco Meineri
We study local quantum field theories in Anti-de Sitter (AdS) space, with boundary conditions that break some of the bulk isometries. Specifically, we focus on conformal defects an…
Continuous Family of Conformal Field Theories and Exactly Marginal Operators
Shota Komatsu, Yuya Kusuki, Marco Meineri +1
Does a conformal manifold imply the existence of exactly marginal operators? We answer this question affirmatively under the assumption that there exists a conformal interface with…
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…
The Bootstrap of Points and Lines
Marco Meineri, Bharathkumar Radhakrishnan
We study two-dimensional conformal field theories (CFTs) with boundaries via the conformal bootstrap. We derive a positive semi-definite program from crossing symmetry of three obs…
Demystifying integrable QFTs in AdS: No-go theorems for higher-spin charges
António Antunes, Nat Levine, Marco Meineri
Higher-spin conserved currents and charges feature prominently in integrable 2d QFTs in flat space. Motivated by the question of integrable field theories in AdS space, we consider…
Renormalization group flows in AdS and the bootstrap program
Marco Meineri, Joao Penedones, Taro Spirig
We study correlation functions of the bulk stress tensor and boundary operators in Quantum Field Theories (QFT) in Anti-de Sitter (AdS) space. In particular, we derive new sum rule…
Bounds on photon scattering
Kelian Häring, Aditya Hebbar, Denis Karateev +2
We study 2-to-2 scattering amplitudes of massless spin one particles in space-time dimensions, like real world photons. We define a set of non-perturbative observables (Wilso…
Radiation, entanglement and islands from a boundary local quench
Lorenzo Bianchi, Stefano De Angelis, Marco Meineri
We study the entanglement and the energy density of the radiation emitted after a local quench in a boundary conformal field theory. We use the operator product expansion (OPE) to…
Sailing past the End of the World and discovering the Island
Tarek Anous, Marco Meineri, Pietro Pelliconi +1
Large black holes in anti-de Sitter space have positive specific heat and do not evaporate. In order to mimic the behavior of evaporating black holes, one may couple the system to…
The extraordinary boundary transition in the 3d O(N) model via conformal bootstrap
Jaychandran Padayasi, Abijith Krishnan, Max A. Metlitski +2
This paper studies the critical behavior of the 3d classical model with a boundary. Recently, one of us established that upon treating as a continuous variable,…
Hamiltonian truncation in Anti-de Sitter spacetime
Matthijs Hogervorst, Marco Meineri, Joao Penedones +1
Quantum Field Theories (QFTs) in Anti-de Sitter (AdS) spacetime are often strongly coupled when the radius of AdS is large, and few methods are available to study them. In this wor…
A Scattering Amplitude in Conformal Field Theory
Marc Gillioz, Marco Meineri, Joao Penedones
We define form factors and scattering amplitudes in Conformal Field Theory as the coefficient of the singularity of the Fourier transform of time-ordered correlation functions, as…
Colliders and conformal interfaces
Marco Meineri, Joao Penedones, Antonin Rousset
We set up a scattering experiment of matter against an impurity which separates two generic one-dimensional critical quantum systems. We compute the flux of reflected and transmitt…
Spinning operators and defects in conformal field theory
Edoardo Lauria, Marco Meineri, Emilio Trevisani
We study the kinematics of correlation functions of local and extended operators in a conformal field theory. We present a new method for constructing the tensor structures associa…
Line defects and radiation in theories
Lorenzo Bianchi, Madalena Lemos, Marco Meineri
We study the conformal data of a generic superconformal half-BPS line defect in a four-dimensional theory. We prove a theory independent relation between the one-…
Universality at large transverse spin in defect CFT
Madalena Lemos, Pedro Liendo, Marco Meineri +1
We study the spectrum of local operators living on a defect in a generic conformal field theory, and their coupling to the local bulk operators. We establish the existence of unive…
Radial coordinates for defect CFTs
Edoardo Lauria, Marco Meineri, Emilio Trevisani
We study the two-point function of local operators in the presence of a defect in a generic conformal field theory. We define two pairs of cross ratios, which are convenient in the…
Shape Dependence of Holographic Rényi Entropy in General Dimensions
Lorenzo Bianchi, Shira Chapman, Xi Dong +3
We present a holographic method for computing the response of Rényi entropies in conformal field theories to small shape deformations around a flat (or spherical) entangling surfac…
Effective string description of confining flux tubes
Bastian B. Brandt, Marco Meineri
We review the current knowledge about the theoretical foundations of the effective string theory for confining flux tubes and the comparison of the predictions to pure gauge lattic…
Defects in conformal field theory
Marco Billò, Vasco Gonçalves, Edoardo Lauria +1
We discuss consequences of the breaking of conformal symmetry by a flat or spherical extended operator. We adapt the embedding formalism to the study of correlation functions of sy…
Rényi entropy and conformal defects
Lorenzo Bianchi, Marco Meineri, Robert C. Myers +1
We propose a field theoretic framework for calculating the dependence of Rényi entropies on the shape of the entangling surface in a conformal field theory. Our approach rests on r…
Boundary and Interface CFTs from the Conformal Bootstrap
F. Gliozzi, P. Liendo, M. Meineri +1
We explore some consequences of the crossing symmetry for defect conformal field theories, focusing on codimension one defects like flat boundaries or interfaces. We study surface…
Recent progress in the effective string theory description of LGTs
Marco Billò, Michele Caselle, Davide Fioravanti +4
In presence of a static pair of sources, the spectrum of low-lying states of any confining gauge theory in D space-time dimensions is described, at large source separations, by an…