公开(公告)号：US09317473B2

公开(公告)日：2016-04-19

申请号：US13991159

申请日：2011-12-14

申请人： Norman Y. Yao ,  Liang Jiang ,  Alexey V Gorshkov ,  Peter C Maurer ,  Geza Giedke ,  Juan Ignacio Cirac ,  Mikhail D. Lukin

发明人： Norman Y. Yao ,  Liang Jiang ,  Alexey V Gorshkov ,  Peter C Maurer ,  Geza Giedke ,  Juan Ignacio Cirac ,  Mikhail D. Lukin

IPC分类号： G11C11/00 ,  G06F15/78 ,  B82Y10/00 ,  G06N99/00

CPC分类号： G06F15/78 ,  B82Y10/00 ,  G06N99/002

摘要： A quantum information processor (QIP) may include a plurality of quantum registers, each quantum register containing at least one nuclear spin and at least one localized electronic spin. At least some of the quantum registers may be coherently coupled to each other by a dark spin chain that includes a series of optically unaddressable spins. Each quantum register may be optically addressable, so that quantum information can be initialized and read out optically from each register, and moved from one register to another through the dark spin chain, though an adiabatic sequential swap or through free-fermion state transfer. A scalable architecture for the QIP may include an array of super-plaquettes, each super-plaquette including a lattice of individually optically addressable plaquettes coupled to each other through dark spin chains, and separately controllable by confined microwave fields so as to permit parallel operations.

摘要翻译： 量子信息处理器（QIP）可以包括多个量子寄存器，每个量子寄存器包含至少一个核自旋和至少一个局部电子自旋。 至少一些量子寄存器可以通过包括一系列光学不可寻址自旋的黑暗自旋链相互耦合。 每个量子寄存器可以是可光寻址的，使得量子信息可以从每个寄存器被光学初始化和读出，并且通过暗自旋链从一个寄存器移动到另一个寄存器，尽管通过绝热的顺序互换或通过自由费米子状态传送。 用于QIP的可扩展架构可以包括超级平板阵列，每个超级平板包括通过暗自旋链彼此耦合的单独光学寻址的晶片的格子，并且可以通过约束的微波场单独控制，以允许并行操作。

公开(公告)号：US20140025926A1

公开(公告)日：2014-01-23

申请号：US13991159

申请日：2011-12-14

申请人： Norman Y. Yao ,  Liang Jiang ,  Alexey Gorshkov ,  Peter C. Maurer ,  Geza Giedke ,  Juan Ignacio Cirac ,  Mikhail D. Lukin

发明人： Norman Y. Yao ,  Liang Jiang ,  Alexey Gorshkov ,  Peter C. Maurer ,  Geza Giedke ,  Juan Ignacio Cirac ,  Mikhail D. Lukin

IPC分类号： G06F15/78

CPC分类号： G06F15/78 ,  B82Y10/00 ,  G06N99/002

摘要： A quantum information processor (QIP) may include a plurality of quantum registers, each quantum register containing at least one nuclear spin and at least one localized electronic spin. At least some of the quantum registers may be coherently coupled to each other by a dark spin chain that includes a series of optically unaddressable spins. Each quantum register may be optically addressable, so that quantum information can be initialized and read out optically from each register, and moved from one register to another through the dark spin chain, though an adiabatic sequential swap or through free-fermion state transfer. A scalable architecture for the QIP may include an array of super-plaquettes, each super-plaquette including a lattice of individually optically addressable plaquettes coupled to each other through dark spin chains, and separately controllable by confined microwave fields so as to permit parallel operations.

摘要翻译： 量子信息处理器（QIP）可以包括多个量子寄存器，每个量子寄存器包含至少一个核自旋和至少一个局部电子自旋。 至少一些量子寄存器可以通过包括一系列光学不可寻址自旋的黑暗自旋链相互耦合。 每个量子寄存器可以是可光寻址的，使得量子信息可以从每个寄存器被光学初始化和读出，并且通过暗自旋链从一个寄存器移动到另一个寄存器，尽管通过绝热的顺序互换或通过自由费米子状态传送。 用于QIP的可扩展架构可以包括超级平板阵列，每个超级平板包括通过暗自旋链彼此耦合的单独光学寻址的晶片的格子，并且可以通过约束的微波场单独控制，以允许并行操作。

公开(公告)号：US08547090B2

公开(公告)日：2013-10-01

申请号：US12746128

申请日：2008-12-03

申请人： Mikhail D. Lukin ,  Ronald L. Walsworth ,  Amir Yacoby ,  Paola Cappellaro ,  Jacob M. Taylor ,  Liang Jiang ,  Lilian Childress

发明人： Mikhail D. Lukin ,  Ronald L. Walsworth ,  Amir Yacoby ,  Paola Cappellaro ,  Jacob M. Taylor ,  Liang Jiang ,  Lilian Childress

IPC分类号： G01R33/02

CPC分类号： G01R33/032 ,  G01N24/10 ,  G01R33/1284 ,  G01R33/24 ,  G01R33/60

摘要： A method is disclosed for increasing the sensitivity of a solid state electronic spin based magnetometer that makes use of individual electronic spins or ensembles of electronic spins in a solid-state lattice, for example NV centers in a diamond lattice. The electronic spins may be configured to undergo a Zeeman shift in energy level when photons of light are applied to the electronic spins followed by pulses of an RF field that is substantially transverse to the magnetic field being detected. The method may include coherently controlling the electronic spins by applying to the electronic spins a sequence of RF pulses that dynamically decouple the electronic spins from mutual spin-spin interactions and from interactions with the lattice. The sequence of RF pulses may be a Hahn spin-echo sequence, a Can Purcell Meiboom Gill sequence, or a MREV8 pulse sequence, by way of example.

摘要翻译： 公开了一种用于增加固体电子自旋基磁力计的灵敏度的方法，其使用电子自旋或电子自旋的集合在固态晶格中，例如金刚石晶格中的NV中心。 当光子被施加到电子自旋上时，电子自旋可被配置为在能量水平上经历塞曼移动，随后是基本上横向于被检测的磁场的RF场的脉冲。 该方法可以包括通过向电子自旋施加一系列RF脉冲来相干地控制电子自旋，该序列使电子自旋与相互自旋 - 自旋相互作用和与晶格的相互作用动态地分离。 作为示例，RF脉冲的序列可以是Hahn自旋回波序列，Can Purcell Meiboom Gill序列或MREV8脉冲序列。

公开(公告)号：US20100258784A1

公开(公告)日：2010-10-14

申请号：US12678907

申请日：2008-09-18

申请人： Mikhail D. Lukin ,  Alexander S. Zibrov ,  Alexey V. Akimov ,  Philip R. Hemmer ,  Hongkun Park ,  Aryesh Mukherjee ,  Darrick E. Chang ,  Chun Liang Yu

发明人： Mikhail D. Lukin ,  Alexander S. Zibrov ,  Alexey V. Akimov ,  Philip R. Hemmer ,  Hongkun Park ,  Aryesh Mukherjee ,  Darrick E. Chang ,  Chun Liang Yu

IPC分类号： H01L29/66 ,  G02B6/00 ,  H01L31/0232 ,  F21V8/00 ,  G02B6/26

CPC分类号： G02B6/1226 ,  B82Y20/00 ,  G02B6/107

摘要： A cavity free, broadband approach for engineering photon emitter interactions via sub-wavelength confinement of optical fields near metallic nanostructures. When a single CdSe quantum dot (QD) is optically excited in close proximity to a silver nanowire (NW), emission from the QD couples directly to guided surface plasmons in the NW, causing the wire's ends to light up. Nonclassical photon correlations between the emission from the QD and the ends of the NW demonstrate that the latter stems from the generation of single, quantized plasmons. Results from a large number of devices show that the efficient coupling is accompanied by more than 2.5-fold enhancement of the QD spontaneous emission, in a good agreement with theoretical predictions.

摘要翻译： 一种无腔宽带方式，用于通过金属纳米结构附近的光场的亚波长约束来工程化光子发射体相互作用。 当单个CdSe量子点（QD）在靠近银纳米线（NW）的情况下被光学激发时，来自QD的发射直接耦合到NW中的引导表面等离子体激元，导致电线端部点亮。 来自QD的发射和NW的末端之间的非经典光子相关性表明后者源于单个量子化等离子体的产生。 大量器件的结果表明，与理论预测有很好的一致性，有效耦合伴随着QD自发发射的2.5倍以上的增强。

公开(公告)号：US07532400B2

公开(公告)日：2009-05-12

申请号：US11974257

申请日：2007-10-12

申请人： Peter Zoller ,  Luming Duan ,  Ignacio Cirac ,  Mikhail D. Lukin

发明人： Peter Zoller ,  Luming Duan ,  Ignacio Cirac ,  Mikhail D. Lukin

IPC分类号： G02B27/00

CPC分类号： H04B10/70

摘要： The invention provides systems and methods enabling high fidelity quantum communication over long communication channels even in the presence of significant loss in the channels. The invention involves laser manipulation of quantum correlated atomic ensembles using linear optic components (110, 120), optical sources of low intensity pulses (10), interferers in the form of beam splitters (150), and single-photon detectors (180, 190) requiring only moderate efficiencies. The invention provides fault-tolerant entanglement generation and connection using a sequence of steps that each provide built-in entanglement purification and that are each resilient to realistic noise levels. The invention relies upon collective rather single particle excitations in atomic ensembles and results in communication efficiency scaling polynomially with the total length of the communication channel.

摘要翻译： 本发明提供了即使在信道中存在显着损失的情况下，也可以在长通信信道上实现高保真量子通信的系统和方法。 本发明涉及使用线性光学部件（110,120），低强度脉冲（10）的光源，分束器（150）形式的干扰源和单光子检测器（180,190）的量子相关原子集合的激光操纵 ）只需要中等效率。 本发明使用一系列步骤提供容错纠缠生成和连接，每个步骤都提供内置的纠缠净化，并且各自适应现实的噪声水平。 本发明依赖于在原子集合中的集体而非单一的粒子激发，并且导致通信效率与通信信道的总长度多项式地缩放。

公开(公告)号：US07317574B2

公开(公告)日：2008-01-08

申请号：US10500203

申请日：2002-05-20

申请人： Peter Zoller ,  Luming Duan ,  Ignacio Cirac ,  Mikhail D. Lukin

发明人： Peter Zoller ,  Luming Duan ,  Ignacio Cirac ,  Mikhail D. Lukin

IPC分类号： G02B27/00

CPC分类号： H04B10/70

摘要： Apparatus and methods for high fidelity quantum communication over long communication channels even in the presence of significant loss in the channels are disclosed. The invention employs laser manipulation of quantum correlated atomic ensembles using linear optic components, optical sources of low intensity pulses, beam splitters, and single-photon detectors requiring only moderate efficiencies. The invention provides fault-tolerant entanglement generation and connection, using a sequence of steps that each provide built-in entanglement purification and that are each resilient to the realistic noise. The invention relies upon collective excitation in atomic ensembles rather than single particle excitations in atomic ensembles so that communication efficiency scales polynomially with the total length of a communication channel.

摘要翻译： 公开了即使在通道中存在显着损失的情况下通过长通信信道进行高保真量子通信的装置和方法。 本发明使用线性光学部件，低强度脉冲的光源，分束器和仅需要中等效率的单光子检测器来对量子相关原子集合进行激光操纵。 本发明提供容错纠缠生成和连接，使用一系列步骤，每个步骤提供内置的纠缠净化，并且各自适应现实的噪声。 本发明依赖于原子集合中的集体激励，而不是原子集合中的单个粒子激发，使得通信效率与通信信道的总长度成倍增长。