Speed optimized two-qubit gates with laser coherent control techniques for ion trap quantum computing.
We propose a new concept for a two-qubit gate operating on a pair of trapped ions based on laser coherent control techniques. The gate is insensitive to the temperature of the ions, works also outside the Lamb-Dicke regime, requires no individual addressing by lasers, and can be orders of magnitude faster than the trap period, which is presently the speed limit of all two-qubit proposals.
García-Ripoll
J J
JJ
Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, Garching, D-85748, Germany. Juan.Ripoll@mpq.mpg.de
Zoller
P
P
Cirac
J I
JI