Improving the purity of one- and two-qubit gates

✍ Scribed by S. Kohler; P. Hänggi

• Book ID: 105357567
• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 225 KB
• Volume: 54
• Category: Article
• ISSN: 0015-8208
• DOI: 10.1002/prop.200610314

✦ Synopsis

Abstract

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.