Results 11 to 20 of about 1,003 (120)

Shift operators from the simplex representation in momentum-space CFT

Journal of High Energy Physics, 2023
We derive parametric integral representations for the general n-point function of scalar operators in momentum-space conformal field theory. Recently, this was shown to be expressible as a generalised Feynman integral with the topology of an (n − 1 ...
Francesca Caloro, Paul McFadden
doaj   +1 more source

Conformal bootstrap in momentum space at finite volume

Journal of High Energy Physics, 2023
In this paper, we Fourier transform the Wightman function concerning energy and angular momentum on the S D−1 spatial slice in radial quantization in D = 2, 3 dimensions.
Kanade Nishikawa
doaj   +1 more source

Magic fermions: Carroll and flat bands

Journal of High Energy Physics, 2023
The Carroll algebra is constructed as the c → 0 limit of the Poincare algebra and is associated to symmetries on generic null surfaces. In this paper, we begin investigations of Carrollian fermions or fermions defined on generic null surfaces. Due to the
Arjun Bagchi, Aritra Banerjee, Rudranil Basu, Minhajul Islam, Saikat Mondal   +4 more
doaj   +1 more source

The Gross-Neveu-Yukawa archipelago

Journal of High Energy Physics, 2023
We perform a bootstrap analysis of a mixed system of four-point functions of bosonic and fermionic operators in parity-preserving 3d CFTs with O(N) global symmetry. Our results provide rigorous bounds on the scaling dimensions of the O(N)-symmetric Gross-
Rajeev S. Erramilli, Luca V. Iliesiu, Petr Kravchuk, Aike Liu, David Poland, David Simmons-Duffin   +5 more
doaj   +1 more source

Dualities between fermionic theories and the Potts model

Journal of High Energy Physics, 2023
We show that a large class of fermionic theories are dual to a q → 0 limit of the Potts model in the presence of a magnetic field. These can be described using a statistical model of random forests on a graph, generalizing the (unrooted) random forest ...
Vladimir Narovlansky
doaj   +1 more source

Bootstrapping conformal QED3 and deconfined quantum critical point

Journal of High Energy Physics, 2022
We bootstrap the deconfined quantum critical point (DQCP) and 3D Quantum Electrodynamics (QED3) coupled to N f flavors of two-component Dirac fermions. We show the lattice and perturbative results on the SO(5) symmetric DQCP are excluded by the bootstrap
Zhijin Li
doaj   +1 more source

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

Conformal defects in neural network field theories

Journal of High Energy Physics
Neural Network Field Theories (NN-FTs) represent a novel construction of arbitrary field theories, including those of conformal fields, through the specification of the network architecture and prior distribution for the network parameters. In this work,
Pietro Capuozzo, Brandon Robinson, Benjamin Suzzoni   +2 more
doaj   +1 more source

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
doaj   +1 more source

On emergent conformal symmetry near the photon ring

Journal of High Energy Physics, 2023
In this note we revisit the emergent conformal symmetry in the near-ring region of warped spacetime. In particular, we propose a novel construction of the emergent near-ring sl(2, ℝ)QNM symmetry.
Bin Chen, Yehui Hou, Zezhou Hu
doaj   +1 more source