Results 71 to 80 of about 37,131 (309)
A scaling limit for line and surface defects
Journal of High Energy Physics, 2022 We study symmetry-breaking line defects in the Wilson-Fisher theory with O(2N + 1) global symmetry near four dimensions and symmetry-preserving surface defects in a cubic model with O(2N) global symmetry near six dimensions.
D. Rodriguez-Gomez
doaj +1 more source
Modularity and 4D-2D spectral equivalences for large-N gauge theories with adjoint matter [PDF]
, 2015 In recent work, we demonstrated that the confined-phase spectrum of non-supersymmetric pure Yang-Mills theory coincides with the spectrum of the chiral sector of a two-dimensional conformal field theory in the large-$N$ limit.
Başar, Gökçe +3 more
core +3 more sources
Conformal Invariance and Vector Operators in the O(N) Model [PDF]
Journal of statistical physics, 2019 It is widely expected that, for a large class of models, scale invariance implies conformal invariance. A sufficient condition for this to happen is that there exists no integrated vector operator, invariant under all internal symmetries of the model ...
Gonzalo De Polsi +2 more
semanticscholar +1 more source
Spacetime Symmetries and Conformal Data in the Continuous Multiscale Entanglement Renormalization Ansatz [PDF]
Physical Review Letters, 2017 4+10 pages, 6 ...
Qi Hu, Qi Hu, Guifre Vidal
openaire +4 more sources
Carving Out the Space of 4D CFTs [PDF]
, 2011 We introduce a new numerical algorithm based on semidefinite programming to efficiently compute bounds on operator dimensions, central charges, and OPE coefficients in 4D conformal and N=1 superconformal field theories.
Poland, David +2 more
core +3 more sources
Renormalization group flows between Gaussian fixed points
Journal of High Energy Physics, 2022 A scalar theory can have many Gaussian (free) fixed points, corresponding to Lagrangians of the form ϕ□ n ϕ. We use the non-perturbative RG to study examples of flows between such fixed points. We show that the anomalous dimension changes continuously in
Diego Buccio, Roberto Percacci
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Symmetries, holography, and quantum phase transition in two-dimensional dilaton AdS gravity [PDF]
Physical Review D, 2017 We present a revisitation of the Almheiri-Polchinski dilaton gravity model from a two-dimensional (2D) bulk perspective. We describe a peculiar feature of the model, namely the pattern of conformal symmetry breaking using bulk Killing vectors, a ...
M. Cadoni, Matteo Ciulu, M. Tuveri
semanticscholar +1 more source
A note on defect Mellin amplitudes
Journal of High Energy Physics, 2023 We generalize the Mellin representation for a generic co-dimension flat defect CFT. We study the analytic structure of the Mellin amplitudes. We also compute Witten diagrams for a generic co-dimension flat defect CFT.
Vasco Goncalves, Georgios Itsios
doaj +1 more source
Scalar tilt from broken conformal invariance
, 2010 Within recently proposed scenario which explains flatness of the spectrum of scalar cosmological perturbations by a combination of conformal and global symmetries, we discuss the effect of weak breaking of conformal invariance.
A. D. Linde +14 more
core +1 more source
Conformal couplings of Galileons to other degrees of freedom [PDF]
, 2013 We discuss a formulation of Galileon actions in terms of matrix determinants in four dimensions. This approach allows one to straightforwardly determine derivative couplings between Galileons and scalar or vector degrees of freedom that lead to equations
Tasinato, Gianmassimo
core +1 more source