最优1→3对称型经济实态量子克隆的固态电路实现方案  

A Scheme to Implement the Optimal 1→3 Economical Real State Quantum Cloning in Solid State Circuit

作　　者：赵英燕 王辉[1] 陈娟[1] 姜年权[1] 

机构地区：[1]温州大学物理与电子信息工程学院,浙江温州325035

出　　处：《温州大学学报（自然科学版）》2013年第4期24-31,共8页Journal of Wenzhou University(Natural Science Edition)

基　　金：国家自然科学基金(10947017/A05)

摘　　要：提出一种最优1→3对称型经济实态量子克隆的固态电路实现方案.在方案中,通过利用磁脉冲控制磁通量、电荷和穿过约瑟夫森结的相位差来实现最优1→3对称型经济实态量子克隆.经济实态量子克隆只需要对比特进行操作,不需要其它辅助操作,实验上简化了量子克隆的实现过程.由于超导比特具有耦合强度强,又没有非线性电感和能量的耗散等优点.相比于腔QED系统,固态系统在实验上便于集成和操作.We design a solid-state circuit scheme to implement the optimal 1 → 3 symmetric economical real state cloning in solid state circuit. In this scheme, our quantum cloning is obtained by using electromagnetic pulses to control the magnetic flux, the charge and the phase difference across a Josephson junction （a device with nonlinear inductance and no energy dissipation）. The economical cloning machine, which will greatly simplify the experimental implementation, does not require any ancilla except SQUID qubits. Compared to the cavity QED system, due to much stronger coupling constant in this circuit, the solid system is easy for integration and operation.

关 键 词：经济实态量子克隆 固态电路 超导比特 

分 类 号：O413.2[理学—理论物理]