# Quantum Gravity meets Lattice QFT

## Secretariat

Ines Campo
+39 0461 314721
Monday, 3 September, 2018 - 08:00 to Friday, 7 September, 2018 - 14:00
Location:
ECT* Conference room
Abstract:

AdS/CFT has been one of the most fruitful approaches to analyse the qualitative aspects
of the dynamics of strongly interacting QFTs, most prominently QCD. As an approach to
understanding the early stage of high energy heavy ion collisions, but also proton-proton
collisions at LHC, it is, in fact, one of very few systematic approaches. However, it is not
clear how reliable the description is quantitatively, because QCD is not a ${\cal N}=4$,
supersymmetric, conformal, SU(N) gauge theory with infinite N and the QCD coupling
constant is of limited size. Individual contributions exist on both sides of the duality
calculating the size of the relevant corrections (like the perturbative calculation of quantum
corrections on the gravity side for finite N and finite coupling strength, the lattice simulation
of SU(N) gauge theories with N>3, the calculation of perturbative corrections from
non-conformality on the QFT side, lattice simulation with partial supersymmetry ...) but no
systematic effort. In addition, more general scenarios for gauge/gravity dualities have been
studied, extending beyond the realms of AdS, CFT, and string theory. The probability is high
that quantitative contact can only be made on the basis of non-perturbative calculations on
both sides, which is a very tall order. On the QFT side, lattice QFT is the best established
tool to do so, while on the quantum gravity side resummed string theory is the main
approach. In addition, there is an increased recent interest within loop quantum gravity in
holographic computations. The aim of the workshop is to bring some of the internationally
leading experts in these fields together, formulate a more systematic strategy, and realize a
few projects in the direction of a quantitative application of quantum gravity techniques to
QCD in subsequent months.

Registration period:
18 Jun 2018 to 12 Aug 2018

## Organizers

 Norbert Bodendorfer LMU Munich Kristina Giesel FAU erlangen Masanori Hanada Kyoto - Livermore & Stanford University Marco Panero University or Turin Andreas Schäfer Regensburg University Larry Yaffe Seattle University