[HTML][HTML] Evidence for a novel shift-symmetric universality class from the functional renormalization group

C Laporte, N Locht, AD Pereira, F Saueressig - Physics Letters B, 2023 - Elsevier
Wetterich's equation provides a powerful tool for investigating the existence and universal
properties of renormalization group fixed points exhibiting quantum scale invariance …

Infinite distances in multicritical CFTs and higher-spin holography

I Basile, A Campoleoni, S Pekar… - Journal of High Energy …, 2023 - Springer
A bstract We investigate the swampland distance conjecture in higher-spin gravity. To this
end, we study multicritical generalizations of large-N vector models, bosonic and fermionic …

Functional renormalization and the scheme

A Baldazzi, R Percacci, L Zambelli - Physical Review D, 2021 - APS
Working with scalar field theories, we discuss choices of regulator that, inserted in the
functional renormalization group equation, reproduce the results of dimensional …

Critical models with scalars in

A Codello, M Safari, GP Vacca, O Zanusso - Physical Review D, 2020 - APS
We adopt a combination of analytical and numerical methods to study the renormalization
group flow of the most general field theory with quartic interaction in d= 4-ε with N= 3 and N …

Bounds on multiscalar CFTs in the ε expansion

M Hogervorst, C Toldo - Journal of High Energy Physics, 2021 - Springer
A bstract We study fixed points with N scalar fields in 4− ε dimensions to leading order in ε
using a bottom-up approach. We do so by analyzing O (N) invariants of the quartic coupling …

Multicritical Landau-Potts field theory

A Codello, M Safari, GP Vacca, O Zanusso - Physical Review D, 2020 - APS
We investigate a perturbatively renormalizable S q invariant model with N= q-1 scalar field
components below the upper critical dimension dc= 10/3. Our results hint at the existence of …

Anomalous dimensions of partially conserved higher-spin currents from conformal field theory: Bosonic theories

Y Guo, W Li - Physical Review D, 2024 - APS
In the free□ k scalar conformal field theory, there exist conserved and partially conserved
higher-spin currents. We study their anomalous dimensions associated with ϕ 2 n …

Anomalous dimensions from conformal field theory: generalized theories

Y Guo, W Li - arXiv preprint arXiv:2408.12344, 2024 - arxiv.org
We investigate $\phi^{2n+ 1} $ deformations of the generalized free theory in the $\epsilon $
expansion, where the canonical kinetic term is generalized to a higher-derivative version …

Crossover exponents, fractal dimensions and logarithms in Landau–Potts field theories

M Safari, GP Vacca, O Zanusso - The European Physical Journal C, 2020 - Springer
We compute the crossover exponents of all quadratic and cubic deformations of critical field
theories with permutation symmetry S_q S q in d= 6-ϵ d= 6-ϵ (Landau–Potts field theories) …

Bubble-resummation and critical-point methods for -functions at large N

T Alanne, S Blasi, NA Dondi - The European Physical Journal C, 2019 - Springer
We investigate the connection between the bubble-resummation and critical-point methods
for computing the β β-functions in the limit of large number of flavours, N, and show that …