00976nas a2200133 4500008004100000245006200041210006100103260001500164490000700179520056700186100002300753700002200776856004400798 2000 eng d00aUniversal quantum computation with two-level trapped ions0 aUniversal quantum computation with twolevel trapped ions c2000/12/110 v633 a Although the initial proposal for ion trap quantum computation made use of an
auxiliary internal level to perform logic between ions, this resource is not
necessary in principle. Instead, one may perform such operations directly using
sideband laser pulses, operating with an arbitrary (sufficiently small)
Lamb-Dicke parameter. We explore the potential of this technique, showing how
to perform logical operations between the internal state of an ion and the
collective motional state and giving explicit constructions for a
controlled-not gate between ions.
1 aChilds, Andrew, M.1 aChuang, Isaac, L. uhttp://arxiv.org/abs/quant-ph/0008065v1