利用腔QED实现Deutsch-Jozsa算法  

Implementation of Deutsch-Jozsa Algorithm Via Cavity QED

作　　者：杨榕灿[1] 李洪才[1] 刘文武[1] 张秀真[1] 郑碧沁[1] 梅金锋[1] 

机构地区：[1]福建师范大学物理与光电信息科技学院,福建福州350007

出　　处：《福建师范大学学报（自然科学版）》2008年第3期38-41,63,共5页Journal of Fujian Normal University：Natural Science Edition

基　　金：国家自然科学基金资助项目(1057402210575022);福建省自然科学基金资助项目(Z0512006);福建省教育厅基金资助项目(03BD591);福建师范大学本科课外立项资助项目(BKL2007092)

摘　　要：提出了利用腔QED来实现两比特Deutsch-Jozsa算法的方案.该方案的主要优点有:(1)在整个过程中,腔场仅处于虚拟激发状态,有效地抑制了腔泄漏和热场对系统的影响;(2)不需要任何Hadamard变换,使得实验装置更为简单.因此,在当前的实验技术条件下,该方案是可行的.A scheme for the implementation of the two-qubit Deutsch-Jozsa algorithm using cavity QED was proposed. The advantages of the proposal are demonstrated as follows. One is that the cavity feld is only virtually excited and the photon-number-dependent part in the effective Hamiltonian is cancelled so that the system is insensitive to the cavity decay and the thermal field. The other one is that we don＇t require any Hadamard operation, which makes the schematic setup simple. Therefore, the present scheme is available based on the current technologies.

关 键 词：Deutsch—Jozsa算法 热场 腔QED 

分 类 号：O431[机械工程—光学工程]