Quantum logic gate using a cyclic artificial atom in a cavity

We present a scheme for realizing two-qubit quantum phase gate using a three-level artificial atom with cyclic population transfer. In this scheme, the “atom” interacts with a bimodal cavity, and a classical field is synchronously coupled with its two lowest energy levels. Operation of the logic gat...

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Bibliographic Details
Published in:Physics letters. A 2006-03, Vol.351 (4), p.242-245
Main Authors: Xia, Li-Xin, Yang, Guo-Jian, Xie, Qiong-Tao
Format: Article
Language:English
Subjects:
Artificial atom
Broken symmetry
Quantum logic gate
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Summary:We present a scheme for realizing two-qubit quantum phase gate using a three-level artificial atom with cyclic population transfer. In this scheme, the “atom” interacts with a bimodal cavity, and a classical field is synchronously coupled with its two lowest energy levels. Operation of the logic gate only involves metastable states of the “atom”, thus is not affected by spontaneous emission.
ISSN:0375-9601
1873-2429
DOI:10.1016/j.physleta.2005.10.102