Zobrazeno 1 - 10
of 12 909
pro vyhledávání: '"Asymptotic freedom"'
Autor:
Romatschke, Paul
In 1973, Coleman and Gross proved that in four dimensions, only non-abelian gauge theories can have asymptotic freedom. More recently, Aizenman and Duminil-Copin proved that four dimensional scalar field theories are quantum trivial in the continuum.
Externí odkaz:
http://arxiv.org/abs/2310.18414
Autor:
Hosseini, Seyed Ali, Karlin, Ilya
Asymptotic freedom is a feature of quantum chromodynamics that guarantees its well-posedeness. We derive an analog of asymptotic freedom enabling unconditional stability of lattice Boltzmann simulation of hydrodynamics. For the lattice Boltzmann mode
Externí odkaz:
http://arxiv.org/abs/2308.03034
We investigate the renormalization group flow of projectable Horava gravity in $(3+1)$ dimensions generated by marginal operators with respect to the Lifshitz scaling. The flow possesses a number of asymptotically free fixed points. We find a family
Externí odkaz:
http://arxiv.org/abs/2310.07841
We propose a two-dimensional hard core loop-gas model as a way to regularize the asymptotically free massive continuum quantum field theory that emerges at the BKT transition. Without fine-tuning, our model can reproduce the universal step-scaling fu
Externí odkaz:
http://arxiv.org/abs/2307.06117
Autor:
Galvez-Viruet, J. J., Gomez-Rocha, M.
Publikováno v:
EPJ Web of Conferences 274, 02006 (2022)
Front-Form Hamiltonian dynamics provides a framework in which QCD's vacuum is simple and states are boost invariant. However, canonical expressions are divergent and must be regulated in order to establish well-defined eigenvalue problems. The Renorm
Externí odkaz:
http://arxiv.org/abs/2301.08464
Autor:
Migdal, Alexander
Publikováno v:
MDPI:Fractal and Fractional, vol 7, # 5 (2023)
We study the Kelvinons: monopole ring solutions to the Euler equations, regularized as the Burgers vortex in the viscous core. There is finite anomalous dissipation in the inviscid limit. However, in the anomalous Hamiltonian, some terms are growing
Externí odkaz:
http://arxiv.org/abs/2212.13356
Publikováno v:
Phys. Rev. D 108, 016019 (2023)
We show that scalar quantum field theory in four Euclidean dimensions with global $O(N)^3$ symmetry and imaginary tetrahedral coupling is asymptotically free and bounded from below in the large-N limit. While the Hamiltonian is non-Hermitian, the ful
Externí odkaz:
http://arxiv.org/abs/2301.09514
Autor:
Romatschke, Paul
Recently, Ai, Bender and Sarkar gave a prescription on how to obtain $\mathcal{PT}$-symmetric field theory results from an analytic continuation of Hermitian field theories. I perform this analytic continuation for the massless (critical) O(N) model
Externí odkaz:
http://arxiv.org/abs/2211.15683
Autor:
Gálvez-Viruet, Juan José1 jj.galvezviruet@ugr.es, Gómez-Rocha, María1,2 mgomezrocha@ugr.es
Publikováno v:
EPJ Web of Conferences. 12/22/2022, Vol. 274, p1-7. 7p.
Autor:
Migdal, Alexander1 (AUTHOR) am10485@nyu.edu
Publikováno v:
Fractal & Fractional. May2023, Vol. 7 Issue 5, p351. 28p.