Quantum Chromodynamics (QCD) has been accepted as the theory
that describes the strong interactions, i.e., the
interactions between quarks and gluons. QCD is an asymptotically
free theory, hence, perturbation theory can be applied in
the high energy regime, where many successful
quantitative predictions have been made.
The description of low energy QCD phenomena
i.e, in the strong-coupling regime,
for example, the spectrum of hadrons, poses the problem of solving
the theory non perturbatively. Formulating the theory on a discrete
space-time grid enables numerical simulations to be performed using Monte Carlo techniques. Lattice
QCD makes it possible to study low energy properties
of QCD from first principles.
Experimental observations of the spectroscopy of hadrons
containing charm quarks have undergone a renaissance in
recent years. The triggering point was the discovery of
several new narrow charmonium resonances close to
the $D \bar D$ thresholds and new narrow $D_s$ mesons
close to the DK thresholds. More results are expected to
appear in the next few years from currently running experiments,
e.g. Belle, BES-III and LHCb and the future PANDA experiment
at the FAIR facility at the GSI.
We study the spectra of charmonium, charm-light mesons, singly and
double charmed baryons using Lattice QCD.