Scaling study of dynamical smeared-link clover fermions (2008)
Durr, S., Fodor, Z., Hoelbling, C., Hoffmann, R., Katz, S. D., Krieg, S., ...
We present a framework for phenomenological lattice QCD calculations which makes use of a tree-level Symanzink improved action for gluons and stout-link Wilson fermions. We give details of our...
Chiral behavior of pseudo-Goldstone boson masses and decay constants in 2+1 flavor QCD (2007)
Durr, S., Fodor, Z., Hoelbling, C., Katz, S. D., Krieg, S., Kurth, Th., ...
We present preliminary results for the chiral behavior of charged pseudo-Goldstone-boson masses and decay constants. These are obtained in simulations with N_f=2+1 flavors of tree-level,...
Mixed action simulations: approaching physical quark masses (2007)
Durr, S., Fodor, Z., Hoelbling, C., Katz, S. D., Krieg, S., Kurth, Th., ...
Some algorithmic details of our $N_f=2+1$ QCD mixed action simulations with overlap valence and improved Wilson sea quarks are presented.
Dynamical overlap fermions with increased topological tunnelling (2007)
Cundy, N., Krieg, S., Lippert, T., Schaefer, A
We present two improvements to our previous dynamical overlap HMC algorithm. We introduce a new method of differentiating the eigenvectors of the Kernel operator, which removes an instability in the...
Improving the dynamical overlap algorithm (2005)
Cundy, N., Krieg, S., Lippert, Th.
We present algorithmic improvements to the overlap Hybrid Monte Carlo algorithm, including preconditioning techniques and improvements to the correction step, used when one of the eigenvalues of the...
Numerical Methods for the QCD Overlap Operator IV: Hybrid Monte Carlo (2005)
Cundy, N., Krieg, S., Arnold, G., Frommer, A., Lippert, Th., Schilling, K.
The extreme computational costs of calculating the sign of the Wilson matrix within the overlap operator have so far prevented four dimensional dynamical overlap simulations on realistic lattice...
Dynamical overlap simulations using HMC (2004)
Cundy, N., Krieg, S., Frommer, A., Lippert, Th., Schilling, K.
We apply the Hybrid Monte Carlo method to the simulation of overlap fermions. We give the fermionic force for the molecular dynamics update. We present early results on a small dynamical chiral...
Improving Inversions of the Overlap Operator (2004)
Krieg, S., Cundy, N., Eshof, J. Van Den, Frommer, A., Lippert, Th., Schäfer, K.
We present relaxation and preconditioning techniques which accelerate the inversion of the overlap operator by a factor of four on small lattices, with larger gains as the lattice size increases....
Augmented Reality Basistechnologien (2004)
Stricker, D., Hamadou, M., Hoymann, H., Jahn, D., Kiesel, B., Krieg, S., ...
Die AR-Basistechnologien bilden die Systembasis für die applikationsspezifischen Entwicklungen in ARVIKA und sind somit substanzieller Bestandteil der AR-Anwendungsszenarien. Alle Dienste, die nicht...
Numerical Methods for the QCD Overlap Operator: II. Optimal Krylov Subspace Methods (2003)
Arnold, G., Cundy, N., Eshof, J. Van Den, Frommer, A., Krieg, S., Lippert, Th., ...
We investigate optimal choices for the (outer) iteration method to use when solving linear systems with Neuberger's overlap operator in QCD. Different formulations for this operator give rise to...
Rambukkana, A, Das, P K, Burggraaf, J D, Faber, W R, Teeling, P, Krieg, S, ...
Both mycobacterial hsp65 and the actively secreted antigen 85 complex of 30-kDa region proteins are considered to be major immune targets in mycobacterial diseases. In this study, by using a novel...
Rambukkana, A, Burggraaf, J D, Faber, W R, Harboe, M, Teeling, P, Krieg, S, ...
The granulomatous skin lesions in leprosy are thought to be initiated by the immune response to certain antigens of the causative agent, Mycobacterium leprae. The antigen 85 complex is one of the...
Rambukkana, A, Das, P K, Burggraaf, J D, Faber, W R, Teeling, P, Krieg, S, ...
Both mycobacterial hsp65 and the actively secreted antigen 85 complex of 30-kDa region proteins are considered to be major immune targets in mycobacterial diseases. In this study, by using a novel...
Rambukkana, A, Burggraaf, J D, Faber, W R, Harboe, M, Teeling, P, Krieg, S, ...
The granulomatous skin lesions in leprosy are thought to be initiated by the immune response to certain antigens of the causative agent, Mycobacterium leprae. The antigen 85 complex is one of the...
Rambukkana, A, Das, P K, Krieg, S, Young, S, Le Poole, I C, Bos, J D
Molecular mimicry between mycobacterial heat-shock protein (hsp) 65 and host tissue antigens have been implicated in the autoimmune pathogenesis of certain idiopathic diseases. Here, we demonstrated...