Qubit readout via controlled coherent tunnelling to probe state
    5.
    发明授权
    Qubit readout via controlled coherent tunnelling to probe state 失效
    通过控制相干隧道到探测状态的Qubit读数

    公开(公告)号:US07479652B2

    公开(公告)日:2009-01-20

    申请号:US10567990

    申请日:2004-08-10

    IPC分类号: H01L29/06

    CPC分类号: G06N99/002 B82Y10/00

    摘要: This invention concerns quantum computers in which the qubits are closed systems, in that the particle or particles are confined within the structure. A “site” can be produced by any method of confining an electron or other quantum particle, such as a dopant atom, a quantum dot, a cooper pair box, or any combination of these. In particular the invention concerns a closed three-site quantum particle system. The state in the third site is weakly coupled by coherent tunneling to the first and second states, so that the third state is able to map out the populations of the first and second states as its energy is scanned with respect to the first and second states. In second and third aspects it concerns a readout method for a closed three-state quantum particle system.

    摘要翻译: 本发明涉及其中量子位是封闭系统的量子计算机,其中颗粒或颗粒被限制在结构内。 可以通过限制电子或其他量子粒子,例如掺杂剂原子,量子点,铜对盒或这些的任何组合的任何方法来产生“位点”。 特别地,本发明涉及封闭的三位置量子粒子系统。 第三站点中的状态通过相干隧道到第一和第二状态而弱耦合,使得第三状态能够映射第一和第二状态的群体,因为其能量相对于第一和第二状态被扫描 。 在第二和第三方面,它涉及封闭的三态量子粒子系统的读出方法。