公开(公告)号：US09361962B2

公开(公告)日：2016-06-07

申请号：US14365161

申请日：2012-12-23

申请人： Georg Kucsko ,  Peter Maurer ,  Liang Jiang ,  Norman Yao ,  Mikhail Lukin

发明人： Georg Kucsko ,  Peter Maurer ,  Liang Jiang ,  Norman Yao ,  Mikhail Lukin

IPC分类号： G11C13/00 ,  G11C11/16 ,  G06N99/00 ,  G11C13/04 ,  B82Y10/00

CPC分类号： G11C11/161 ,  B82Y10/00 ,  G06N99/002 ,  G11C13/04

摘要： A system comprising a solid state lattice containing an electronic spin coupled to a nuclear spin; an optical excitation configuration which is arranged to generate first optical radiation to excite the electronic spin to emit output optical radiation without decoupling the electronic and nuclear spins; wherein the optical excitation configuration is further arranged to generate second optical radiation of higher power than the first optical radiation to decouple the electronic spin from the nuclear spin thereby increasing coherence time of the nuclear spin; a first pulse source configured to generate radio frequency (RF) excitation pulse sequences to manipulate the nuclear spin and to dynamically decouple the nuclear spin from one or more spin impurities in the solid state lattice so as to further increase the coherence time of the nuclear spin; a second pulse source configured to generate microwave excitation pulse sequences to manipulate the electronic spin causing a change in intensity of the output optical radiation correlated with the electronic spin and with the nuclear spin via the coupling between the electronic spin and the nuclear spin; and a detector configured to detect the output optical radiation correlated with the electronic spin and the nuclear spin so as to detect a nuclear spin state of the nuclear spin.

摘要翻译： 一种包含固态晶格的系统，其包含耦合到核自旋的电子自旋; 光学激励配置被布置成产生第一光辐射以激发电子自旋以发射输出光辐射而不使电子和核自旋断开; 其中所述光学激发配置还被布置成产生比所述第一光学辐射更高功率的第二光辐射以将所述电子自旋与所述核自旋分离，从而增加所述核自旋的相干时间; 第一脉冲源，被配置为产生射频（RF）激励脉冲序列以操纵核自旋并且动态地将核自旋与固态晶格中的一个或多个自旋杂质分离，以进一步增加核自旋的相干时间 ; 第二脉冲源，被配置为产生微波激励脉冲序列以操纵电子自旋，引起与电子自旋相关的输出光辐射的强度和通过电子自旋与核自旋之间的耦合的核自旋; 以及检测器，被配置为检测与电子自旋和核自旋相关的输出光辐射，以便检测核自旋的核自旋状态。

公开(公告)号：US20140358793A1

公开(公告)日：2014-12-04

申请号：US14366341

申请日：2012-12-23

申请人： Fernando Pastawski ,  J. Ignacio Cirac ,  Liang Jiang ,  Norman Yao ,  Mikhail Lukin

发明人： Fernando Pastawski ,  J. Ignacio Cirac ,  Liang Jiang ,  Norman Yao ,  Mikhail Lukin

IPC分类号： G06Q20/38 ,  H04L9/08 ,  H04L9/32 ,  G06Q20/04

CPC分类号： H04L9/3234 ,  G06Q2220/00 ,  H04L9/0852 ,  H04L2209/34 ,  H04L2209/56

摘要： A quantum ticket is defined by a unique serial number; and a set of qubits, each qubit encoding quantum information. The serial number and the set of qubits are distributed only among one or more trusted verifiers who require a tolerance fidelity Ftol in order to authenticate the token, where Ftol represents a minimum percentage of correct outcomes during authentication of the serial number and the set of qubits. The experimental fidelity Fexp for the quantum token is greater than the Ft0i set by the verifiers, so that an honest user of the quantum ticket who achieves Fexp is exponentially likely to be successfully authenticated when seeking authentication by any of the trusted verifiers. The forging fidelity Fforg for the quantum token is less than Ft0i, so that a dishonest user who achieves Fforg and attempts forgery of the quantum ticket is exponentially likely to fail to obtain authentication for his forged ticket.

摘要翻译： 量子票由唯一的序列号定义; 和一组量子位，每个量子位编码量子信息。 序列号和量子位集合仅在需要容限保真度Ftol的一个或多个可信验证者之间分配以验证令牌，其中Ftol表示在序列号和数组位集合中的正确结果的最小百分比 。 量子令牌的实验保真度Fexp大于验证者设置的Ft0i，从而在通过任何受信任的验证者进行身份验证时，实现Fexp的量子单元的诚实用户在成功认证时可能被成功认证。 量子令牌的锻造保真度Fforg小于Ft0i，使得实现Fforg并尝试伪造量子票的不诚实用户在数值上可能无法获得他的伪造票证书。