Publications (66)
Critical slowing down and error analysis in lattice QCD simulations
Stefan Schaefer, Rainer Sommer, Francesco Virotta
The topological susceptibility of SU(3) gauge theory near T_c
Christof Gattringer, Roland Hoffmann, Stefan Schaefer
Searching for KvBLL calorons in SU(3) lattice gauge field ensembles
Christof Gattringer, Ernst-Michael Ilgenfritz, Boris V. Martemyanov +5
Comparison of the mass preconditioned HMC and the DD-HMC algorithm for two-flavour QCD
Marina Marinkovic, Stefan Schaefer
Quenched spectroscopy with fixed-point and chirally improved fermions
BGR Collaboration, Christof Gattringer, Meinulf Gockeler +10
The impact of localized overlap eigenmodes on RMT measurements and topology
Anna Hasenfratz, Roland Hoffmann, Stefan Schaefer
A multilevel algorithm for flow observables in gauge theories
Miguel GarcÃa Vera, Stefan Schaefer
$D_s$ physics from fine lattices
Georg von Hippel, Rainer Sommer, Jochen Heitger +2
Dynamical simulations with HYP-link Wilson fermions
Anna Hasenfratz, Roland Hoffmann, Stefan Schaefer
Domain decomposition, multi-level integration and exponential noise reduction in lattice QCD
Marco Cè, Leonardo Giusti, Stefan Schaefer
CLS 2+1 flavor simulations at physical light- and strange-quark masses
Daniel Mohler, Stefan Schaefer, Jakob Simeth
Excited nucleons with chirally improved fermions
Dirk Broemmel, Peter Crompton, Christof Gattringer +4
Epsilon regime calculations with reweighted clover fermions
Anna Hasenfratz, Roland Hoffmann, Stefan Schaefer
Multi-level integration for meson propagators
Leonardo Giusti, Tim Harris, Alessandro Nada +1
Lattice QCD with open boundary conditions and twisted-mass reweighting
Martin Lüscher, Stefan Schaefer
Algorithms for dynamical overlap fermions
Stefan Schaefer
The complete lowest order chiral Lagrangian from a little box
Thomas DeGrand, Stefan Schaefer
Quenched QCD with fixed-point and chirally improved fermion
Christof Gattringer, Meinulf Göckeler, Peter Hasenfratz +9
Domain decomposition and multilevel integration for fermions
Marco Cè, Leonardo Giusti, Stefan Schaefer
Localized eigenmodes of the overlap operator and their impact on the eigenvalue distribution
Anna Hasenfratz, Roland Hoffmann, Stefan Schaefer
Charm quark mass and D-meson decay constants from two-flavour lattice QCD
Jochen Heitger, Georg M. von Hippel, Stefan Schaefer +1
Status and challenges of simulations with dynamical fermions
Stefan Schaefer
Algorithms for lattice QCD: progress and challenges
Stefan Schaefer
Setting the scale for the Luescher-Weisz action
Christof Gattringer, Roland Hoffmann, Stefan Schaefer
The large $N$ limit of the topological susceptibility of Yang-Mills gauge theory
Marco Cè, Miguel GarcÃa Vera, Leonardo Giusti +1
Parameters of the lowest order chiral Lagrangian from fermion eigenvalues
Thomas DeGrand, Stefan Schaefer
Simulation of QCD with N_f=2+1 flavors of non-perturbatively improved Wilson fermions
Mattia Bruno, Dalibor Djukanovic, Georg P. Engel +11
Dynamical overlap fermions: techniques and results
Stefan Schaefer, Thomas DeGrand
Topological susceptibility in two-flavor QCD
Thomas DeGrand, Stefan Schaefer
Chiral properties of two-flavor QCD in small volume and at large lattice spacing
Thomas DeGrand, Stefan Schaefer
Improving meson two-point functions in lattice QCD
Thomas DeGrand, Stefan Schaefer
Low energy chiral constants from epsilon-regime simulations with improved Wilson fermions
Anna Hasenfratz, Roland Hoffmann, Stefan Schaefer
New extended interpolating operators for hadron correlation functions
Francesco Scardino, Mauro Papinutto, Stefan Schaefer
Reweighting towards the chiral limit
Anna Hasenfratz, Roland Hoffmann, Stefan Schaefer
Speeding up parallel tempering simulations
Martin Hasenbusch, Stefan Schaefer
Chirally improved Dirac operators: Studying the sensitivity to topological excitations for zero and finite temperature
Christof Gattringer, Meinulf Göckeler, C. B. Lang +3
A comprehensive picture of topological excitations in finite temperature lattice QCD
Christof Gattringer, Meinulf Göckeler, P. E. L. Rakow +2
Lattice QCD without topology barriers
Martin Lüscher, Stefan Schaefer
Quark condensate in two-flavor QCD
Thomas DeGrand, Zhaofeng Liu, Stefan Schaefer
Properties of near-zero modes and chiral symmetry breaking
Christof Gattringer, Meinulf Goeckeler, P. E. L. Rakow +2
Improvement of N_f=3 lattice QCD with Wilson fermions and tree-level improved gauge action
John Bulava, Stefan Schaefer
Non-renormalizability of the HMC algorithm
Martin Lüscher, Stefan Schaefer
Simulating an arbitrary number of flavors of dynamical overlap fermions
Thomas DeGrand, Stefan Schaefer
The topological susceptibility in the large-N limit of SU(N) Yang-Mills theory
Marco Cè, Miguel GarcÃa Vera, Leonardo Giusti +1
The strange quark mass and Lambda parameter of two flavor QCD
Patrick Fritzsch, Francesco Knechtli, Björn Leder +4
Strange quark mass and Lambda parameter by the ALPHA collaboration
Marina Marinkovic, Stefan Schaefer, Rainer Sommer +1
New extended interpolating fields built from three-dimensional fermions
Mauro Papinutto, Francesco Scardino, Stefan Schaefer
Quark condensate in one-flavor QCD
Thomas DeGrand, Roland Hoffmann, Stefan Schaefer +1
Wilson fermions in the epsilon regime
Oliver Bar, Silvia Necco, Stefan Schaefer
Multi-boson block factorization of fermions
Leonardo Giusti, Marco Cè, Stefan Schaefer
Setting the scale for the CLS $2 + 1$ flavor ensembles
Mattia Bruno, Tomasz Korzec, Stefan Schaefer
On the extraction of spectral quantities with open boundary conditions
Mattia Bruno, Piotr Korcyl, Tomasz Korzec +2
Autocorrelations in Hybrid Monte Carlo Simulations
Stefan Schaefer, Francesco Virotta
A local factorization of the fermion determinant in lattice QCD
Marco Cè, Leonardo Giusti, Stefan Schaefer
New findings for topological excitations in SU(3) lattice gauge theory
Christof Gattringer, Stefan Schaefer
Non-perturbative improvement of nHYP smeared Wilson fermions
Roland Hoffmann, Anna Hasenfratz, Stefan Schaefer
Investigating the critical slowing down of QCD simulations
Stefan Schaefer, Rainer Sommer, Francesco Virotta
Testing the event-chain algorithm in asymptotically free models
Martin Hasenbusch, Stefan Schaefer
Physics issues in simulations with dynamical overlap fermions
Thomas DeGrand, Stefan Schaefer
Diquark effects in light baryon correlators from lattice QCD
Thomas DeGrand, Zhaofeng Liu, Stefan Schaefer
Topological susceptibility and the sampling of field space in $N_f=2$ lattice QCD simulations
Mattia Bruno, Stefan Schaefer, Rainer Sommer
Exploring the epsilon regime with lattice Wilson fermions
Oliver Bar, Silvia Necco, Stefan Schaefer
Testing trivializing maps in the Hybrid Monte Carlo algorithm
Georg P. Engel, Stefan Schaefer
The epsilon regime with Wilson fermions
Oliver Bar, Silvia Necco, Stefan Schaefer
The determination of $α_s$ by the ALPHA collaboration
Mattia Bruno, Mattia Dalla Brida, Patrick Fritzsch +6
Hypercubic Smeared Links for Dynamical Fermions
Anna Hasenfratz, Roland Hoffmann, Stefan Schaefer