Photonic interconnect system
    11.
    发明申请
    Photonic interconnect system 审中-公开
    光子互连系统

    公开(公告)号:US20080112703A1

    公开(公告)日:2008-05-15

    申请号:US12008531

    申请日:2008-01-11

    IPC分类号: H04J14/00

    摘要: A photonic interconnect system avoids high capacitance electric interconnects by using optical signals to communicate data between devices. The system can provide massively parallel information output by mapping logical addresses to frequency bands, so that modulation of a selected frequency band can encode information for a specific location corresponding to the logical address. The system comprises a first device containing a plurality of locations that are separately accessible and a plurality of optical decoders respectively associated with the locations; a second device that generates a logical address identifying a selected one of the locations in the first device; a converter capable of activating each of a plurality of components of an optical signal; and an optical path from the converter to each of the locations. The system can be used for both classical and quantum information processing.

    摘要翻译: 光子互连系统通过使用光信号在设备之间传送数据来避免高电容电互连。 系统可以通过将逻辑地址映射到频带来提供大量并行信息输出,使得所选频带的调制可以对与逻辑地址相对应的特定位置的信息进行编码。 该系统包括包含可分开存取的多个位置的第一装置和分别与位置相关联的多个光学解码器; 第二设备,其生成识别所述第一设备中的所选位置之一的逻辑地址; 转换器,其能够激活光信号的多个分量中的每一个; 以及从转换器到每个位置的光路。 该系统可用于经典和量子信息处理。

    Security systems and monitoring methods using quantum states
    12.
    发明申请
    Security systems and monitoring methods using quantum states 有权
    使用量子态的安全系统和监控方法

    公开(公告)号:US20070257201A1

    公开(公告)日:2007-11-08

    申请号:US11417614

    申请日:2006-05-03

    IPC分类号: G21K5/10

    CPC分类号: H04B10/70

    摘要: A security system uses a source capable of producing an entangled state of a sensing mode and a reference mode. The sensing mode has a path that enters an area around an object being secured. A state measurement system in the security system can measure a combination of the sensing mode after traversal of the sensing path and the reference mode after traversal of a reference path.

    摘要翻译: 安全系统使用能够产生感测模式和参考模式的纠缠状态的源。 感测模式具有进入被保护物体周围的区域的路径。 安全系统中的状态测量系统可以在遍历参考路径之后测量感测路径遍历之后的感测模式与参考模式的组合。

    Entanglement Processes and System
    13.
    发明申请
    Entanglement Processes and System 有权
    纠缠过程和系统

    公开(公告)号:US20070252081A1

    公开(公告)日:2007-11-01

    申请号:US11632596

    申请日:2005-07-13

    IPC分类号: H01J49/00

    CPC分类号: G06N99/002 B82Y10/00

    摘要: We propose a practical method to generate cluster states for quantum computers. The qubit systems can be NV-centers in diamond, Pauli-blockade quantum dots with an excess electron or ion traps with optical transitions, which are subsequently entangled using a so-called double-heralded single-photon detection scheme. The fidelity of the resulting entanglement is extremely robust against the most important practical errors such as detector loss, light collection efficiency and mode mismatching. The cluster states are generated efficiently using a modified probabilistic teleportation protocol.

    摘要翻译: 我们提出了一种生成量子计算机的集群状态的实用方法。 量子比特系统可以是金刚石中的NV中心,具有过量电子或具有光学跃迁的离子陷阱的Pauli阻挡量子点,随后使用所谓的双重预先单光子检测方案进行纠缠。 所产生的纠缠的保真度对于最重要的实际误差如检测器损耗,光收集效率和模式不匹配是非常强大的。 使用修改的概率传送协议有效地生成集群状态。

    Methods for determining relative phase differences in entangled quantum states
    14.
    发明申请
    Methods for determining relative phase differences in entangled quantum states 失效
    确定纠缠量子态相对相位差的方法

    公开(公告)号:US20070250280A1

    公开(公告)日:2007-10-25

    申请号:US11407600

    申请日:2006-04-19

    IPC分类号: G06F19/00

    CPC分类号: B82Y10/00 G06N99/002

    摘要: Various embodiments of the present invention are directed to methods for determining a phase shift acquired by an entangled N-qubit system represented by a NOON state. In one embodiment, a probe electromagnetic field is coupled with each qubit system. The phase shift acquired by the qubit systems is transferred to the probe electromagnetic field by transforming each qubit-system state into a linear superposition of qubit basis states. An intensity measurement is performed on the probe electromagnetic field in order to obtain a corresponding measurement result. A counter associated with a measurement-result interval is incremented, based on the measurement result falling within the measurement-result interval. A frequency distribution is produced by normalizing the counter associated with each measurement-result interval for a number of trials. The phase shift is determined by fitting a probability distribution associated with the probe electromagnetic field to the frequency distribution as a function of the phase shift.

    摘要翻译: 本发明的各种实施例涉及用于确定由NOON状态表示的纠缠的N量子比特系统获取的相移的方法。 在一个实施例中,探测电磁场与每个量子位系统耦合。 通过将每个量子位系统状态转换为量子位基状态的线性叠加,由量子位系统获取的相移被传送到探测电磁场。 对探头电磁场进行强度测量,以获得相应的测量结果。 基于测量结果间隔内的测量结果,与测量结果间隔相关联的计数器增加。 通过对与多个试验的每个测量结果间隔相关联的计数器进行归一化来产生频率分布。 通过将与探测电磁场相关联的概率分布拟合为频率分布来确定相移作为相移的函数。

    Method and device using one-time pad data
    16.
    发明申请
    Method and device using one-time pad data 有权
    方法和设备使用一次性pad数据

    公开(公告)号:US20070016794A1

    公开(公告)日:2007-01-18

    申请号:US11455231

    申请日:2006-06-16

    IPC分类号: H04L9/00

    摘要: In carrying out a task that consumes data from a one-time pad, task inputs comprising at least first data and second data from the pad, are combined together to form an output from which the data used from the pad cannot be recovered without knowledge of at least one of the first and second data. The task concerned can be, for example, the encrypting of a message or the creating of an attribute verifier.

    摘要翻译: 在执行从一次性焊盘消耗数据的任务时,包括至少第一数据和来自焊盘的第二数据的任务输入被组合在一起以形成输出,从该焊盘所使用的数据不能被恢复,而不知道 第一和第二数据中的至少一个。 所涉及的任务可以是例如加密消息或创建属性验证器。

    Nonlinear electromagnetic quantum information processing
    17.
    发明申请
    Nonlinear electromagnetic quantum information processing 有权
    非线性电磁量子信息处理

    公开(公告)号:US20060017992A1

    公开(公告)日:2006-01-26

    申请号:US10899332

    申请日:2004-07-26

    IPC分类号: G02F3/00

    CPC分类号: G06N99/002 B82Y10/00

    摘要: Nonlinear electromagnetic elements can efficiently implement quantum information processing tasks such as controlled phase shifts, non-demolition state detection, quantum subspace projections, non-demolition Bell state analysis, heralded state preparation, quantum non-demolition encoding, and fundamental quantum gate operations. Direct use of electromagnetic non-linearity can amplify small phase shifts and use feed forward systems in a near deterministic manner with high operating efficiency. Measurements using homodyne detectors can cause near deterministic projection of input states on a Hilbert subspace identified by the measurement results. Feed forward operation can then alter the projected state if desired to achieve a desired output state with near 100% efficiency.

    摘要翻译: 非线性电磁元件可以有效地实现量子信息处理任务,例如受控相移,非拆迁状态检测,量子子空间投影,非拆分贝尔状态分析,预兆状态准备,量子非拆分编码和基本量子门操作。 直接使用电磁非线性可以放大小相移,并以高操作效率以接近确定的方式使用前馈系统。 使用零差检测器的测量可以导致由测量结果识别的希尔伯特子空间上的输入状态的近似确定性投影。 如果需要,前馈操作可以改变投影状态,以达到接近100%效率的期望的输出状态。

    Quantum Repeater And System And Method For Creating Extended Entanglements
    19.
    发明申请
    Quantum Repeater And System And Method For Creating Extended Entanglements 失效
    量子中继器和系统以及创建扩展纠缠的方法

    公开(公告)号:US20120134675A1

    公开(公告)日:2012-05-31

    申请号:US13319372

    申请日:2009-10-26

    IPC分类号: H04J14/00

    摘要: An iterative method is provided for progressively building an end-to-end entanglement between qubits in first and second end nodes (91, 92) of a chain of nodes whose intermediate nodes (90) are quantum repeaters. At each iteration, a current operative repeater (90) of the chain merges an entanglement existing between qubits in the first end node (91) and the operative repeater, with a local entanglement formed between qubits in the operative repeater and its neighbour node towards the second end node (92). For the first iteration, the operative repeater is the neighbour of the first end node (91); thereafter, for each new iteration the operative repeater shifts one node further along the chain toward the second end node (92). A quantum repeater adapted for implementing this method is also provided.

    摘要翻译: 提供了一种迭代方法,用于逐渐构建中间节点(90)是量子中继器的节点链的第一和第二端节点(91,92)中的量子比特之间的端到端纠缠。 在每次迭代中,链的当前可操作中继器(90)将存在于第一端节点(91)中的量子位与可操作中继器之间的纠缠与在可操作中继器中的量子比特和其邻居节点之间形成的局部纠缠相结合 第二端节点(92)。 对于第一次迭代,操作中继器是第一端节点(91)的邻居; 此后,对于每个新的迭代,可操作中继器沿着链条进一步向第二端节点(92)移动一个节点。 还提供了适用于实现该方法的量子中继器。

    Photonic interconnect system
    20.
    发明申请
    Photonic interconnect system 有权
    光子互连系统

    公开(公告)号:US20080112665A1

    公开(公告)日:2008-05-15

    申请号:US12008618

    申请日:2008-01-11

    IPC分类号: G02B6/12

    摘要: A photonic interconnect system avoids high capacitance electric interconnects by using optical signals to communicate data between devices. The system can provide massively parallel information output by mapping logical addresses to frequency bands, so that modulation of a selected frequency band can encode information for a specific location corresponding to the logical address. Wavelength-specific directional couplers, modulators, and detectors for the photonic interconnect system can be efficiently fabricated at defects in a photonic bandgap crystal. The interconnect system can be used for both classical and quantum information processing.

    摘要翻译: 光子互连系统通过使用光信号在设备之间传送数据来避免高电容电互连。 系统可以通过将逻辑地址映射到频带来提供大量并行信息输出,使得所选频带的调制可以对与逻辑地址相对应的特定位置的信息进行编码。 用于光子互连系统的波长特异性定向耦合器,调制器和检测器可以有效地制造在光子带隙晶体的缺陷处。 互连系统可用于经典和量子信息处理。