Implementing a quantum SWAP gate in ion-trap systems

Abstract

Abstract:

A novel scheme for realizing a two-qubit quantum SWAP gate in ion-trap systems is proposed. We consider two three-level ions which are confined in a linear trap interact with two different frequency laser pulse in the case of resonant. According to the experimental methods and result of Haffner H. and Riebe M, one Zeeman level of the ground state of ion can act as one ground state, while two Zeeman levels of the metastable state act as the excited states. With choosing appropriate parameters such as , and , the total time required to complete the procedure is about much shorter than the lifetime of the metastable state, and in this scheme decoherence is negligible. Thus this scheme may be realized with presently available ion-trap techniques.

Key words: quantum optics, quantum SWAP gate, ion-trap systems, resonant

HU Gui-Yu, YANG Zhen, YE Liu. Implementing a quantum SWAP gate in ion-trap systems[J]. J4, 2009, 26(5): 555-559.

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