Abstract: We consider two-dimensional Schroedinger
operators with randomly distributed
delta magnetic fields, and prove
the Lifshitz tail (the exponential decay
of the integrated density of states
at the infimum of the spectrum) for this operator.
In this case, the known method by using
the Avron-Herbst-Simon estimate is not
applicable; insted, we use the Hardy-type
inequality by Laptev-Weidl.
This work is a collabolated work
with Yuji Nomura.
