Zobrazeno 1 - 10
of 158
pro vyhledávání: '"Antipin, Oleg"'
We determine the scaling dimension $\Delta_n$ for the class of composite operators $\phi^n$ in the $\lambda \phi^4$ theory taking the double scaling limit $n\rightarrow \infty$ and $\lambda \rightarrow 0$ with fixed $\lambda n$ via a semiclassical ap
Externí odkaz:
http://arxiv.org/abs/2408.01414
We determine anomalous dimensions of a family of fixed hypercharge operators in the Standard Model featuring the general Cabibbo-Kobayashi-Maskawa structure. The results are obtained at infinite orders in the couplings and to leading and subleading o
Externí odkaz:
http://arxiv.org/abs/2312.12963
Autor:
Antipin, Oleg, Bednyakov, Alexander, Bersini, Jahmall, Panopoulos, Pantelis, Pikelner, Andrey
Publikováno v:
Phys.Rev.Lett. 130 (2023) 2, 021602
Quantum field theories with global symmetries simplify considerably in the large-charge limit allowing to compute correlators via a semiclassical expansion in the inverse powers of the conserved charges. A generalization of the approach to gauge symm
Externí odkaz:
http://arxiv.org/abs/2210.10685
We extend the fixed-charge semiclassical method by computing anomalous dimensions of fixed-charge scalar operators in models with Yukawa interactions. In particular, we discuss the Nambu-Jona-Lasinio-Yukawa theory as well as an asymptotically safe ga
Externí odkaz:
http://arxiv.org/abs/2208.05839
We investigate the analytic properties of the fixed charge expansion for a number of conformal field theories in different space-time dimensions. The models investigated here are $O(N)$ and $QED_3$. We show that in $d=3-\epsilon$ dimensions the contr
Externí odkaz:
http://arxiv.org/abs/2202.13165
The Weak Gravity Conjecture has recently been re-formulated in terms of a particle with non-negative self-binding energy. Because of the dual conformal field theory (CFT) formulation in the anti-de Sitter space the conformal dimension $\Delta (Q)$ of
Externí odkaz:
http://arxiv.org/abs/2109.04946
Publikováno v:
Phys. Rev. D 104, 085002 (2021)
We compute the scaling dimensions of a family of fixed-charge operators at the infrared fixed point of the $O(N)$ model featuring cubic interactions in $d=6-\epsilon$ for arbitrary $N$ to leading and subleading order in the charge but to all orders i
Externí odkaz:
http://arxiv.org/abs/2107.02528
Publikováno v:
Phys. Rev. D 103, 125024 (2021)
We go beyond a systematic review of the semiclassical approaches for determining the scaling dimensions of fixed-charge operators in $U(1)$ and $O(N)$ models by introducing a general strategy apt at determining the relation between a given charge con
Externí odkaz:
http://arxiv.org/abs/2102.04390
Publikováno v:
Phys. Rev. D 102, 125033 (2020)
We apply a semi-classical method to compute the conformal field theory (CFT) data for the U(N)xU(N) non-abelian Higgs theory in four minus epsilon dimensions at its complex fixed point. The theory features more than one coupling and walking dynamics.
Externí odkaz:
http://arxiv.org/abs/2006.10078
Publikováno v:
Phys. Rev. D 102, 045011 (2020)
We determine, for the first time, the scaling dimensions of a family of fixed-charge operators stemming from the critical $O(N)$ model in 4-$\epsilon$ dimensions to the leading and next to leading order terms in the charge expansion but to all-orders
Externí odkaz:
http://arxiv.org/abs/2003.13121