The discovery of exactly chirally symmetric fermions on the lattice has triggered intensive research in the development of algorithms to simulate dynamical Ginsparg-Wilson fermions on the lattice. In light of recent work in this area, we anticipate that there will be a limited number of expensive, full QCD configurations in the near future. One would like to extract all the information that one...

We investigate whether the null energy, averaged over some region of spacetime, is bounded below in QFT. First, we use light-sheet quantization to prove a version ``Smeared Null Energy Condition" (SNEC) proposed [1], applicable for free and super-renormalizable QFT's equipped with UV cutoff. Through an explicit construction squeezed states, show that SNEC bound cannot be improved by smearing on...

Using the σ − ω model as an effective tool, the effects of selfconsistency are studied in some detail. A coupled set of DysonSchwinger equations for the renormalized baryon and meson propagators in the σ− ω model is solved self-consistently according to the dressed Hartree-Fock scheme, where the hadron propagators in both the baryon and meson self-energies are required to also satisfy this coup...

In this article we quantize (massive) higher spin (1 ≤ j ≤ 2) fields by means of Dirac’s Constrained Hamilton procedure both in the situation were they are totally free and were they are coupled to (an) auxiliary field(s). A full constraint analysis and quantization is presented by determining and discussing all constraints and Lagrange multipliers and by giving all equal times (anti) commutati...

The Kugo–Ojima confinement criterion and its relation to the infrared behaviour of the gluon and ghost propagators in Landau gauge QCD are reviewed. The realization of this confinement criterion (which in Landau gauge relates to Zwanziger's horizon condition) results from quite general properties of the ghost Dyson– Schwinger equation. The numerical solutions for the gluon and ghost propagators...

We study the conformally invariant quantum field theory in spaces of even dimension D ≥ 4. The conformal transformations of current j µ and energy-momentum tensor T µν are examined. It is shown that the set of conformal transformations of particular kind corresponds to the canonical (unlike anomalous) dimensions l j = D − 1 and l T = D of those fields. These transformations cannot be derived by...

Fake news propagation in online social networks (OSN) is one of the critical societal threats nowadays directing attention to fake mitigation and intervention techniques. One typical techniques focus on initiating campaigns targeting a specific set users when infected known or entire network unknown. The contemporary assume campaign users’ acceptance share (MN); however, reality, user behavior ...