An easy scheme for implementing conditional logic gate in cavity QED

Abstract

Abstract: Inspired by the previous works on the conditional quantum logic gate, a scheme for realizing the C-NOT gate, Toffoli gate and Fredkin gate in cavity QED has been proposed. The scheme only involves atom-field interaction of large-detuning, so it is very simple and easy to realize because the cavity is only virtually excited, and the transfer of the quantum information between the atoms and cavity will not occur. Thus, it is insensitive to the cavity decay and the thermal field, and the requirement on the quality factor of the cavities is greatly loosened and the scheme is feasible with present experimental technology.

Key words: quantum optics, conditional logic gate, control variable method, cavity QED

CLC Number:

O431.2

Liu Wen-peng, Song Xue-ke，Ye Liu . An easy scheme for implementing conditional logic gate in cavity QED [J]. J4, 2013, 30(6): 738-742.

References

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