In the quest to build a practical quantum computer, it is important to use efficient schemes for
enacting the elementary quantum operations from which quantum computer programs are …

Schemes of universal quantum computation in which the interactions between the
computational elements, in a computational register, are mediated by some ancillary system …

A universal set of gates for (classical or quantum) computation is a set of gates that can be
used to approximate any other operation. It is well known that a universal set for classical …

Quantum computers have the potential to solve problems that are believed to be classically
intractable. However, building such a device is proving to be very challenging. In this thesis …

Since the potential power of a quantum computer was first realised there have been huge
developments in the theory of the subject and many proof-of-principle experiments utilising a …