Lattice calculations

In this contribution we describe how an exact chiral symmetry can be realized on the lattice. A practical realization of a lattice Dirac operator that leads to a chiral invariant lattice action is discussed and a simulation with this operator is presented that aims at testing the phenomenon of spontaneous chiral symmetry breaking in QCD.Received: 30 September 2002, Published online: 22 October 2003PACS: 11.15.Ha Lattice gauge theory - 12.38.Gc Lattice QCD calculations