公开(公告)号：US20090261319A1

公开(公告)日：2009-10-22

申请号：US11658647

申请日：2005-07-25

申请人： Sadamichi Maekawa ,  Taro Yamashita ,  Saburo Takahshi

发明人： Sadamichi Maekawa ,  Taro Yamashita ,  Saburo Takahshi

IPC分类号： H01L39/22

CPC分类号： G06N99/002 ,  B82Y10/00

摘要： A Josephson quantum computing device and an integrated circuit using Josephson quantum computing devices which can realize a NOT gate operation controlled with 2 bits will be provided. The Josephson quantum computing device (1) comprises: a superconducting ring member (10) having a π-junction (6) and a 0-junction (7); and a quantum state detecting member (20) constituted by a superconducting quantum interference device arranged outside of the superconducting ring member, wherein a bonding and an antibonding state brought about by a tunneling effect between a |↑> and a |↓> state as two states degenerate in energy of the superconducting ring member (10) are regarded as quantum bits. The bonding and antibonding states as the quantum bits are read out by the quantum state detecting member (20). The two bit controlled NOT gate operation can be performed by the two quantum bits comprising said quantum bits.

摘要翻译： 将提供约瑟夫森量子计算设备和使用约瑟夫森量子计算设备的集成电路，其可以实现以2位控制的非门操作。 约瑟夫森量子计算装置（1）包括：具有π结（6）和0结（7）的超导环构件（10）; 和由超导量子干涉元件构成的量子态检测元件（20），该超导量子干涉元件设置在超导环形元件外部，其中由|↑>↑>状态之间的隧道效应引起的接合和反应状态为二 超导环构件（10）的能量退化的状态被认为是量子位。 作为量子比特的键合反应状态由量子状态检测部件（20）读出。 两位控制的非门操作可以由包括所述量子位的两个量子位执行。