One-Step Realization of SWAP Gate with Superconducting Quantum-Interference Devices and Atoms in Cavity QED |
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Authors: | ZHAN Zhi-Ming |
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Institution: | School of Physics and Information Engineering,
Jianghan University, Wuhan 430056, China |
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Abstract: | We put forward a simple scheme for one-step realization of
a two-qubit SWAP gate with SQUIDs (superconducting quantum-interference
devices) in cavity QED via Raman transition. In this scheme, the cavity
field is only virtually excited and thus the cavity decay is suppressed. The
SWAP gate is realized by using only two lower flux states of the SQUID system
and the excited state would not be excited. Therefore, the effect of
decoherence caused from the levels of the SQUID system is possibly
minimized. The scheme can also be used to implement the SWAP gate with
atoms. |
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Keywords: | SWAP gate superconducting Raman transition |
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