摘要
A scheme is presented for realizing an N-qubit quantum phase gate with trapped ions. Taking advantage of the virtual excitation of the vibrational mode, the qubit system undergoes a full-cycle of Rabi oscillation in the selective symmetric Dicke subspace. The scheme only involves a single step and the operation is insensitive to thermal motion. Moreover, the scheme does not require individual addresing of the ions.
基金
Supported by the National Natural Science Foundation of China under Grant No.10974028
the Doctoral Foundation of the Ministry of Education of China under Grant No.20093514110009
the Natural Science Foundation of Fujian Province under Grant No.2009J06002
