34 citations · 137 across the 15 of their papers we have counts for
15 papers
Note on surface defects in multiscalar critical models
Andrii Anataichuk, Sabine Harribey
This paper studies generic surface defects for multiscalar critical models using a perturbative expansion in dimensions. The beta functions of the defect couplings for a…
Addendum: Long-range multi-scalar models at three loops
Dario Benedetti, Razvan Gurau, Sabine Harribey
We correct the computation of one Feynman diagram in the three-loop beta functions for the long-range quartic multi-scalar model, originally presented in (2020 J. Phys. A: Math. Th…
Multiscalar Critical Models with Localised Cubic Interactions
Sabine Harribey, William H. Pannell, Andreas Stergiou
Interface localised interactions are studied for multiscalar universality classes accessible with the perturbative expansion in dimensions. The associ…
Finite-size versus finite-temperature effects in the critical long-range model
Dario Benedetti, Razvan Gurau, Sabine Harribey +1
In this paper we consider classical and quantum versions of the critical long-range model, for which we study finite-size and finite-temperature effects, respectively, at la…
Boundaries and Interfaces with Localized Cubic Interactions in the Model
Sabine Harribey, Igor R. Klebanov, Zimo Sun
We explore a new approach to boundaries and interfaces in the model where we add certain localized cubic interactions. These operators are nearly marginal when the bulk dime…
Renormalization in tensor field theory and the melonic fixed point
Sabine Harribey
This thesis focuses on renormalization of tensor field theories. Its first part considers a quartic tensor model with symmetry and long-range propagator. The existence of…
The F-theorem in the melonic limit
Dario Benedetti, Razvan Gurau, Sabine Harribey +1
The -theorem states that in three dimensions the sphere free energy of a field theory must decrease between ultraviolet and infrared fixed points of the renormalization group fl…
Sextic tensor model in rank at next-to-leading order
Sabine Harribey
We compute the four-loop beta functions of short and long-range multi scalar models with general sextic interactions and complex fields. We then specialize the beta functions to a…
Melonic large limit of -index irreducible random tensors
Sylvain Carrozza, Sabine Harribey
We demonstrate that random tensors transforming under rank- irreducible representations of can support melonic large expansions. Our construction is based on…
The tri-fundamental quartic model
Dario Benedetti, Razvan Gurau, Sabine Harribey
We consider a multi-scalar field theory with either short-range or long-range free action and with quartic interactions that are invariant under …
Long-range multi-scalar models at three loops
Dario Benedetti, Razvan Gurau, Sabine Harribey +1
We compute the three-loop beta functions of long-range multi-scalar models with general quartic interactions. The long-range nature of the models is encoded in a kinetic term with…
Sextic tensor field theories in rank and
Dario Benedetti, Nicolas Delporte, Sabine Harribey +1
We study bosonic tensor field theories with sextic interactions in dimensions. We consider two models, with rank-3 and rank-5 tensors, and and symmetry, res…
Hints of unitarity at large in the tensor field theory
Dario Benedetti, Razvan Gurau, Sabine Harribey +1
We compute the OPE coefficients of the bosonic tensor model of \cite{Benedetti:2019eyl} for three point functions with two fields and a bilinear with zero and non-zero spin. We fin…
Line of fixed points in a bosonic tensor model
Dario Benedetti, Razvan Gurau, Sabine Harribey
We consider the tensor model of Klebanov and Tarnopolsky \cite{Klebanov:2016xxf} in with a free covariance modified to fit the infrared conformal scaling. We study t…
One-loop bosonic string and De Sitter space
Sabine Harribey, Dimitrios Tsimpis
We calculate the bosonic string one-loop three- and four-point amplitudes to quadradic order in momentum, and we read off the one-loop low-energy two-derivative effective action fo…