arXiv subjects

Duško Latas

Publications and source records attributed to Duško Latas.

2 recordsLinked to original sources

arXiv2025

QFT on Fuzzy AdS Spaces: Classical Limit and Boundary Correlation Functions

Quantum field theory on two- and three-dimensional fuzzy anti-de Sitter spaces is introduced and studied. We find a complete set of solutions to the fuzzy Klein-Gordon equation and identify the commutative limit in which they reduce to classical scalar field modes. After introducing the noncommutative boundary via semi-classical states, the fuzzy modes are used to obtain the boundary two-point function. In both two and three dimensions, this gives an interesting two-parameter deformation of the conformal two-point function. For the fuzzy AdS$_2$, the two-point function is given explicitly in terms of the Appell function $F_1$.

hep-th↗

arXiv2024

Seiberg-Witten map Invariant Scatterings

We investigate Scattering amplitudes of the reversible $θ$-exact Seiberg-Witten (SW) map based noncommutative (NC) quantum electrodynamics, and show explicitly the SW map invariance for all tree-level NCQED $2\to2$ proceses, including Möller, Bhabha, Compton, pair annihilation, pair production and light-by-light $(γγ\toγγ)$ scatterings. We apply our NCQED results to the $γγ\toγγ$ and $γγ\to\ell^+\ell^-$ exclusive processes, convoluted to the ultraperipheral lead $^{208}$Pb ion-ion collisions, recently measured by the ATLAS collaboration at LHC. We demonstrate that $γγ\toγγ$ is the more appropriate channel to probe NC scale $Λ_{\rm NC}$ while both are less efficient than some other probes.

hep-ph↗