51 citations · 262 across the 21 of their papers we have counts for
22 papers
When Symmetries Twist: Anomaly Inflow on Monodromy Defects
Christian Copetti
Monodromy defects describe a dynamical termination of topological symmetry operators, and are sourced by a localized background magnetic flux. We study their properties in gapped S…
A Twist on Scattering from Defect Anomalies
Andrea Antinucci, Christian Copetti, Giovanni Galati +1
In the presence of extended defects, familiar incoming particles can scatter into exotic outgoing states created by twist operators. We show that one possible mechanism driving the…
Categorical Anomaly Matching
Andrea Antinucci, Christian Copetti, Yuhan Gai +1
Matching 't Hooft anomalies is a powerful tool for constraining the low-energy dynamics of quantum systems and their allowed renormalization group (RG) flows. For non-invertible (o…
't Hooft Anomalies and Defect Conformal Manifolds: Topological Signatures from Modulated Effective Actions
Christian Copetti
Symmetry breaking of continuous symmetries by extended dynamical defects entails the existence of defect families, which form conformal manifolds in a critical setup. In the presen…
Defect Conformal Manifolds from Phantom (Non-Invertible) Symmetries
Andrea Antinucci, Christian Copetti, Giovanni Galati +1
We explore a general mechanism that allows (1+1)d CFTs to have interesting interface conformal manifolds even in the absence of any continuous internal symmetry or supersymmetry. T…
Topological Constraints on Defect Dynamics
Andrea Antinucci, Christian Copetti, Giovanni Galati +1
Extended objects (defects) in Quantum Field Theory exhibit rich, nontrivial dynamics describing a variety of physical phenomena. These systems often involve strong coupling at long…
Boundary SymTFT
Lakshya Bhardwaj, Christian Copetti, Daniel Pajer +1
We study properties of boundary conditions (BCs) in theories with categorical (or non-invertible) symmetries. We describe how the transformation properties, or (generalized) charge…
SymTFT for (3+1)d Gapless SPTs and Obstructions to Confinement
Andrea Antinucci, Christian Copetti, Sakura Schafer-Nameki
We study gapless phases in (3+1)d in the presence of 1-form and non-invertible duality symmetries. Using the Symmetry Topological Field Theory (SymTFT) approach, we classify the ga…
Defect Charges, Gapped Boundary Conditions, and the Symmetry TFT
Christian Copetti
We offer a streamlined and computationally powerful characterization of higher representations (higher charges) for defect operators under generalized symmetries, employing the pow…
Anomalies of non-invertible self-duality symmetries: fractionalization and gauging
Andrea Antinucci, Francesco Benini, Christian Copetti +2
We study anomalies of non-invertible duality symmetries in both 2d and 4d, employing the tool of the Symmetry TFT. In the 2d case we rephrase the known obstruction theory for the T…
Higher Structure of Chiral Symmetry
Christian Copetti, Michele Del Zotto, Kantaro Ohmori +1
A recent development in our understanding of the theory of quantum fields is the fact that familiar gauge theories in spacetime dimensions greater than two can have non-invertible…
Non-invertible symmetries along 4d RG flows
Jeremias Aguilera Damia, Riccardo Argurio, Francesco Benini +3
We explore novel examples of RG flows preserving a non-invertible self-duality symmetry. Our main focus is on quadratic superpotential deformations of 4d $\mathcal{…
"Zoology" of non-invertible duality defects: the view from class
Andrea Antinucci, Christian Copetti, Giovanni Galati +1
We study generalizations of the non-invertible duality defects present in SU(N) SYM by studying theories with larger duality groups. We focus on 4d $\mathcal{N} =…
The holography of non-invertible self-duality symmetries
Andrea Antinucci, Francesco Benini, Christian Copetti +2
We study how non-invertible self-duality defects arise in theories with a holographic dual. We focus on the paradigmatic example of SYM. The th…
Factorization and global symmetries in holography
Francesco Benini, Christian Copetti, Lorenzo Di Pietro
We consider toy models of holography arising from 3d Chern-Simons theory. In this context a duality to an ensemble average over 2d CFTs has been recently proposed. We put forward a…
Delayed Deconfinement and the Hawking-Page Transition
Christian Copetti, Alba Grassi, Zohar Komargodski +1
We revisit the confinement/deconfinement transition in super Yang-Mills (SYM) theory and its relation to the Hawking-Page transition in gravity. Recently there has…
Torsion and anomalies in the warped limit of Lifschitz theories
Christian Copetti
We describe the physics of fermionic Lifschitz theories once the anisotropicscaling exponent is made arbitrarily small. In this limit the system acquires an enhanced(Carrollian) bo…
Anomalous Hall viscosity at the Weyl semimetal/insulator transition
Christian Copetti, Karl Landsteiner
We show that 3D Lifshitz fermions arising as the critical theory at the Weyl semimetal/insulator transition naturally develop an anomalous Hall viscosity at finite temperature. We…
Higher spin vortical Zilches from Kubo formulae
Christian Copetti, Jorge Fernández-Pendás
We compute thermal one point functions in Maxwell's theory sourced by vorticity for the Zilch and its higher spin extensions via the Kubo formalism. This leads to a generalization…
Membrane paradigm and RG flows for anomalous holographic theories
Christian Copetti, Jorge Fernández-Pendás
Holographic RG flows can be better understood with the help of radially conserved charges. It was shown by various authors that the bulk gauge and diffeomorphism symmetries lead to…
Anomalous transport and holographic momentum relaxation
Christian Copetti, Jorge Fernández-Pendás, Karl Landsteiner +1
The chiral magnetic and vortical effects denote the generation of dissipationless currents due to magnetic fields or rotation. They can be studied in holographic models with Chern-…
Axial Hall effect and universality of holographic Weyl semi-metals
Christian Copetti, Jorge Fernández-Pendás, Karl Landsteiner
The holographic Weyl semimetal is a model of a strongly coupled topological semi-metal. A topological quantum phase transition separates a topological phase with non-vanishing anom…