715 citations
- Forschungszentrum JülichDE23 papers
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7 papers · 1 filter
Towards overcoming the Monte Carlo sign problem with tensor networks
Mari Carmen Bañuls, Krzysztof Cichy, J. Ignacio Cirac +3
The study of lattice gauge theories with Monte Carlo simulations is hindered by the infamous sign problem that appears under certain circumstances, in particular at non-zero chemic…
Density Induced Phase Transitions in the Schwinger Model: A Study with Matrix Product States
Mari Carmen Bañuls, Krzysztof Cichy, J. Ignacio Cirac +2
We numerically study the zero temperature phase structure of the multiflavor Schwinger model at nonzero chemical potential. Using matrix product states, we reproduce analytical res…
Numerical magneto-hydrodynamics for relativistic nuclear collisions
Gabriele Inghirami, Luca Del Zanna, Andrea Beraudo +3
We present an improved version of the ECHO-QGP numerical code, which self-consistently includes for the first time the effects of electromagnetic fields within the framework of rel…
A local factorization of the fermion determinant in lattice QCD
Marco Cè, Leonardo Giusti, Stefan Schaefer
We introduce a factorization of the fermion determinant in lattice QCD with Wilson-type fermions that leads to a bosonic action which is local in the block fields. The interaction…
Non-perturbative running of renormalization constants from correlators in coordinate space using step scaling
Krzysztof Cichy, Karl Jansen, Piotr Korcyl
Working in a quenched setup with Wilson twisted mass valence fermions, we explore the possibility to compute non-perturbatively the step scaling function using the coordinate (X-sp…
Slow running of the Gradient Flow coupling from 200 MeV to 4 GeV in QCD
Mattia Dalla Brida, Patrick Fritzsch, Tomasz Korzec +3
Using a finite volume Gradient Flow (GF) renormalization scheme with Schrödinger Functional (SF) boundary conditions, we compute the non-perturbative running coupling in the range…