Hamburg Multigrid Group (HMG)
Theoretical Physics Department of the
University of Hamburg
a fairly large group
is investigating the use of multigrid algorithms in
Lattice Gauge Theories,
i.e. quantum field theories
living on a lattice of discrete sites rather than in
continous space-time. For the very CPU- and storage-expensive
simulations of these theories, both deterministic
and stochastic versions of multigrid algorithms are needed.
Currently, research of this group focuses on these topics:
people and publications from the Hamburg
- Blockspin methods,
Effective Field Theories
- How to define blockspins for extended objects, how to
compute effective field theories.
- Lattice Fermions
- How to incorporate multilevel strategies in
simulations with lattice fermions.
- Neural Multigrid Algorithms
- A multilevel algorithm variant which uses
neural network techniques for optimization.
- Multigrid Monte Carlo
- How to improve stochastic multigrid used in
Monte Carlo simulations of Lattice Gauge Theories.
- Object-Oriented MG programming
- Development of a
for design and testing of MG algorithms.
Marcus Speh, 22-12-94
Bernhard Weininger, 29-12-94