Instituto de Ciencia de Materiales de Madrid
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Improving the purity of one- and two-qubit gates

Sigmund Kohler and Peter Hänggi
Fortschr. Phys. 54, 804 (2006)

We investigate the influence of AC driving fields on the coherence properties of one- and two-qubit gate operations. In both cases, we find that for suitable driving parameters, the gate purity improves significantly. A mapping of the time-dependent system-bath model to an effective static model provides analytical results. The resulting purity loss compares favorably with numerical results.

[ICMM-CSIC] [Condensed Matter Theory]
last modified: 15.3.2024 by Sigmund Kohler