If we would have a quantum computer what can we do with it?
Prof. Dr. Hans De Raedt, University of Groningen

An introduction to the basics of quantum computation is given. We present a generic physical model of quantum computer hardware and compare ideal and physically realizable quantum computers. The model is then used to simulate quantum computers hardware on a Quantum Computer Emulator (QCE). We address the issue of reliable quantum computation on physically realizalbe hardware using the QCE and Grover's database search algorithm as an example. We show that in the absence of dissipation non-ideal, physically realizable quantum computers operate in a regime of extreme sensitivity. This high sensitivity reflects itself in problems of programming quantum computers such that they perform correct calculations. Ways to overcome these difficulties will be discussed.
Additional information can be found on
http://rugth30.phys.rug.nl/compphys/quantum.htm