The Theory of Anomalous Scale Dimensions
نویسنده
چکیده
Using the previously gained insight about the particle/field relation in conformal quantum field theories which required interactions to be related to the existence of particle-like states associated with fields which necessarily have an anomalous contribution in addition to their canonical scale-dimensions, we set out to construct a classification theory for the spectra of anomalous dimensions. We find that they are resulting from a braid group structure. The latter is however not related to statistics (spacelike interchange) but rather draws its raison d’etre from the timelike Huygens principle (timelike commutativity), a characteristic property of conformal observables, as well as from the existence of a timelike ordering. The global aspects of this Huygens structure also leads to a timelike global charge transport around the Dirac-Weyl compactified Minkowski world M̄ which in turn is inexorably related with an S-T modular SL(2,Z) group structure. 1 Background and preview of new results It had been known for a long time that conformal quantum field theory exhibits in addition to the general spin-statistics theorem another more characteristic structural property which we will refer to as the “anomalous dimension-central phase” connection. It relates the anomalous scale dimension of fields modulo integers (semi-integers in the case of Fermion fields) to the phase obtained by performing one complete timelike sweep around the compactified Minkowski world [1] and hence is analogous to the relation of the spin value related to a spatial rotation sweep to the statistics phase [2] of the spin-statistics connection including chiral conformal field theory where the rotation around S is lightlike. The word “central” here refers to the center Z( ̃ SO(d, 2)) of the infinite sheeted covering group ̃ SO(d, 2) which has one abelian generator for
منابع مشابه
Anomalous Scale Dimensions from Timelike Braiding
Using the previously gained insight about the particle/field relation in conformal quantum field theories which required interactions to be related to the existence of particle-like states associated with fields of anomalous scaling dimensions, we set out to construct a classification theory for the spectra of anomalous dimensions. Starting from the old observations on conformal superselection ...
متن کاملAnomalous Dimensions of High-spin Operators beyond the Leading Order
Anomalous dimensions of Wilson operators with large Lorentz spin scale logarithmically with the spin. Recent multi-loop QCD calculations of twist-two anomalous dimensions revealed the existence of interesting structure of the subleading corrections suppressed by powers of the Lorentz spin. We argue that this structure is a manifestation of the 'self-tuning' property of the multi-loop anomalous ...
متن کاملLogarithmic scaling in gauge / string correspondence
We study anomalous dimensions of (super)conformal Wilson operators at weak and strong coupling making use of the integrability symmetry on both sides of the gauge/string correspondence and elucidate the origin of their single-logarithmic behavior for long operators/strings in the limit of large Lorentz spin. On the gauge theory side, we apply the method of the Baxter Q−operator to identify diff...
متن کاملNon-perturbative running of the average momentum of non-singlet parton densities
We determine non-perturbatively the anomalous dimensions of the second moment of non-singlet parton densities from a continuum extrapolation of results computed in quenched lattice simulations at different lattice spacings. We use a Schrödinger functional scheme for the definition of the renormalization constant of the relevant twist-2 operator. In the region of renormalized couplings explored,...
متن کاملConformal constraints for anomalous dimensions of leading twist operators
Leading-twist operators have a remarkable property that their divergence vanishes in a free theory. Recently it was suggested that this property can be used for an alternative technique to calculate anomalous dimensions of leading-twist operators and allows one to gain one order in perturbation theory so that, i.e., two-loop anomalous dimensions can be calculated from one-loop Feynman diagrams,...
متن کامل