There is overwhelming evidence for the existence of dark matter,
however its nature remains unknown. Weakly Interacting Massive
Particles (WIMPs) are theoretically well motivated particle candidates
for dark matter. Neutrinos could be produced as part of the
self-annihilation of WIMPs leading to unique signatures in neutrino
telescopes.
The construction of the IceCube neutrino observatory is nearly
completed with 79 strings of optical modules deployed out of 86
foreseen. In this way the detector already instruments a volume of
about one gigaton of Antarctic ice. The partially instrumented
detector has been taking data since 2006, which has been searched for
evidence of dark matter annihilations in the Sun and in the Galactic
center and halo, in the form of an excess neutrino flux over the
predicted backgrounds from those directions. I will review the results
of these searches and discuss the future physics potential of the
detector. A particular focus will be put on the low-energy extension
of IceCube, Deep-Core, which is taking data since June 2010 and offers
exciting opportunities for dark matter searches down to candidate
masses in the physically interesting region of about 50 GeV.
