Results 51 to 60 of about 2,214 (215)
Perturbative renormalization of the lattice regularized ϕ44 with flow equations [PDF]
Journal of Mathematical Physics, 2020 The flow equations of the renormalization group allow one to analyze the perturbative n-point functions of renormalizable quantum field theories. Rigorous bounds implying renormalizability permit one to control large momentum behavior, infrared singularities, and large order behavior in a number of loops and a number of arguments n.
Majdouline Borji, Christoph Kopper
openaire +4 more sources
Two-loop results on the renormalization of vacuum expectation values and infrared divergences in the FDH scheme [PDF]
, 2014 Recent progress in the understanding of vacuum expectation values and of infrared divergences in different regularization schemes is reviewed. Vacuum expectation values are gauge and renormalization-scheme dependent quantities.
Signer, Adrian +4 more
core +1 more source
Gradient flows and the curvature of theory space
Journal of High Energy PhysicsThe metric and potential associated with the gradient property of renormalisation group flow in multiscalar models in d = 4 − ε dimensions are studied. The metric is identified with the Zamolodchikov metric of nearly marginal operators on the sphere.
William H. Pannell, Andreas Stergiou
doaj +1 more source
Reduction with degenerate Gram matrix for one-loop integrals
Journal of High Energy Physics, 2022 An improved PV-reduction (Passarino-Veltman) method for one-loop integrals with auxiliary vector R has been proposed in [1, 2]. It has also been shown that the new method is a self-completed method in [3].
Bo Feng +3 more
doaj +1 more source
Computing Skinning Weights via Convex Duality
Computer Graphics Forum, EarlyView.We present an alternate optimization method to compute bounded biharmonic skinning weights. Our method relies on a dual formulation, which can be optimized with a nonnegative linear least squares setup. Abstract We study the problem of optimising for skinning weights through the lens of convex duality.
J. Solomon, O. Stein
wiley +1 more source
On the equivalence between implicit regularization and constrained differential renormalization.
, 2008 Constrained differential renormalization (CDR) and the constrained version of implicit regularization are two regularization independent techniques that do not rely on dimensional continuation of the space-time.
Fernandes, José Luiz Acebal +4 more
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Low-energy theorem revisited and OPE in massless QCD
Journal of High Energy PhysicsWe revisit a low-energy theorem (LET) of NSVZ type in SU(N) QCD with N f massless quarks derived in [1] by implementing it in dimensional regularization. The LET relates n-point correlators in the l.h.s.
Marco Bochicchio, Elisabetta Pallante
doaj +1 more source
Nontrivial one-loop recursive reduction relation
Journal of High Energy Physics, 2023 In [1], we proposed a universal method to reduce one-loop integrals with both tensor structure and higher-power propagators. But the method is quite redundant as it does not utilize the results of lower rank cases when addressing certain tensor integrals.
Tingfei Li
doaj +1 more source
SharpEdge: Edge Feature Surface Reconstruction From Space Curves
Computer Graphics Forum, EarlyView.SharpEdge reconstructs surfaces with sharp features from sparse 3D curve networks. By estimating dual normals along curves, our method preserves ridges and corners while producing high‐quality meshes. Abstract Reconstructing high‐quality surfaces from sparse 3D space curves remains challenging, particularly when sharp feature edges are involved ...
X. Yu, A. Sheffer, N. Carr, Y. Gingold
wiley +1 more source
Dimensional regularization and renormalization of non-commutative QFT
, 2007 31 pages, 8 figuresUsing the recently introduced parametric representation of non-commutative quantum field theory, we implement here the dimensional regularization and renormalization of the vulcanized $\Phi^{\star 4}_4$ model on the Moyal ...
Tanasa, A., Gurau, R.
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