摘要
A scheme for implementing discrete quantum Fourier transform is proposed via quantum dots embedded in a microcavity, and then some of its applications are investigated, i.e., Deutsch 3ozsa. algorithm and Shor＇s quantum factoring. In particular, the detailed process of implementing one^qubit Deutsch Jozsa algorithm and the factorization of N = 15 are given. The microcavity mode is only virtually excited in the whole interaction, so the effective decoherent has slight effect on the current scheme. These schemes would be an important step to fabricate a solid quantum computer.
基金
Supported by National Natural Science Foundation of China (NSFC) under Grant Nos.60678022 and 10704001
the Specialized Research Fund for the Doctoral Program of Higher Education under Grant No.20060357008
Anhui Provincial Natural Science Foundation under Grant No.070412060
the Program of the Education Department of Anhui Province under Grant Nos.KJ2008A28ZC,KJ2008B83ZC,KJ2008B265,and 2009A048Z
