Zobrazeno 1 - 10
of 151
pro vyhledávání: '"Russo, J. G."'
Publikováno v:
Phys. Rev. D 108, L041701 (2023)
We consider a general scalar QFT with a linear defect in $D=4-\epsilon$ and a surface defect in $D=6-\epsilon$. Using holography and the Hamilton-Jacobi formalism, we show that the $\beta$ functions controlling the defect RG flow are the gradient of
Externí odkaz:
http://arxiv.org/abs/2306.11796
Publikováno v:
J. High Energ. Phys. 2023. 105 (2023)
We investigate defects in scalar field theories in four and six dimensions in a double-scaling (semiclassical) limit, where bulk loops are suppressed and quantum effects come from the defect coupling. We compute $\beta $-functions up to four loops an
Externí odkaz:
http://arxiv.org/abs/2303.01935
Autor:
Rodriguez-Gomez, D., Russo, J. G.
We consider defect operators in scalar field theories in dimensions $d=4-\epsilon $ and $d=6-\epsilon$ with self-interactions given by a general marginal potential. In a double scaling limit, where the bulk couplings go to zero and the defect couplin
Externí odkaz:
http://arxiv.org/abs/2209.00663
Autor:
Rodriguez-Gomez, D., Russo, J. G.
We derive exact formulas for circular Wilson loops in the $\mathcal{N}=4$ and $\mathcal{N}=2^{* }$ theories with gauge groups $U(N)$ and $SU(N)$ in the $k$-fold symmetrized product representation. The formulas apply in the limit of large $k$ and smal
Externí odkaz:
http://arxiv.org/abs/2206.09935
Autor:
Russo, J. G., Townsend, P. K.
The generic scale-invariant theory of an axion and a dilaton coupled to gravity in $d$-dimensions is generalized to a `universal' one-axion model with two dilatons that reproduces itself under consistent dimensional-reduction/truncation. Flat FLRW co
Externí odkaz:
http://arxiv.org/abs/2203.09398
Autor:
Rodriguez-Gomez, D., Russo, J. G.
We study 2-point and 3-point functions in CFT at finite temperature for large dimension operators using holography. The 2-point function leads to a universal formula for the holographic free energy in $d$ dimensions in terms of the $c$-anomaly coeffi
Externí odkaz:
http://arxiv.org/abs/2105.13909
Autor:
Rodriguez-Gomez, D., Russo, J. G.
We compute thermal 2-point correlation functions in the black brane $AdS_5$ background dual to 4d CFT's at finite temperature for operators of large scaling dimension. We find a formula that matches the expected structure of the OPE. It exhibits an e
Externí odkaz:
http://arxiv.org/abs/2102.11891
We study the sector of large charge operators $\phi^n$ ($\phi$ being the complexified scalar field) in the $O(2)$ Wilson-Fisher fixed point in $4-\epsilon$ dimensions that emerges when the coupling takes the critical value $g\sim \epsilon$. We show t
Externí odkaz:
http://arxiv.org/abs/1908.11347
Autor:
Russo, J. G.
We study the different quantum phases that occur in massive ${\cal N}=2$ supersymmetric QCD with gauge groups $SU(2)$ and $SU(3)$ as the coupling $\Lambda/M$ is gradually increased from 0 to infinity. The phases can be identified by computing the exa
Externí odkaz:
http://arxiv.org/abs/1905.05267
Autor:
Russo, J. G., Townsend, P. K.
It is known that the Einstein gravitational field equations in $D>4$ spacetime dimensions have no time-independent non-singular compactification solutions to de Sitter space if the $D$-dimensional stress tensor satisfies the Strong Energy Condition (
Externí odkaz:
http://arxiv.org/abs/1904.11967