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公开(公告)号：US20110108712A1
公开(公告)日：2011-05-12
申请号：US12906624
申请日：2010-10-18
IPC分类号： H01J40/14
CPC分类号： G01J1/44
摘要： A photon detection system comprising an avalanche photodiode and a voltage source for said avalanche photodiode, wherein said avalanche photodiode comprises Silicon or its heterostructures and wherein said voltage source is configured to bias said avalanche photodiode with a voltage component which is static with respect to time and a voltage component which varies with time.
摘要翻译： 一种包括雪崩光电二极管和用于所述雪崩光电二极管的电压源的光子检测系统，其中所述雪崩光电二极管包括硅或其异质结构，并且其中所述电压源被配置为以相对于时间静态的电压分量来偏置所述雪崩光电二极管， 随时间变化的电压分量。
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公开(公告)号：US20100294919A1
公开(公告)日：2010-11-25
申请号：US12829446
申请日：2010-07-02
IPC分类号： H01L31/107
CPC分类号： H01L31/107 , G01J1/44
摘要： According to one embodiment, a photon detection system determines the number of detected photons. The detection system includes an avalanche photodiode and a measuring unit. The measuring unit measures an avalanche signal induced by illumination before the avalanche current through the device has saturated.
摘要翻译： 根据一个实施例，光子检测系统确定检测到的光子的数量。 检测系统包括雪崩光电二极管和测量单元。 在通过装置的雪崩电流饱和之前，测量单元测量由照明引起的雪崩信号。
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公开(公告)号：US20100157310A1
公开(公告)日：2010-06-24
申请号：US12600598
申请日：2008-05-16
CPC分类号： G01C19/72 , H04B10/548 , H04L9/0858
摘要： An optical system including: a photon source; first directing elements configured to direct photons to follow a first path through the optical system; second directing elements configured to direct photons to follow a second path through the optical system, wherein the second path is the reverse of the first path, photons travelling through the first path having a different polarization to those travelling through the second path; and a mechanism varying the relative phase shift between photons following the first path and photons following the second path.
摘要翻译： 一种光学系统，包括：光子源; 第一引导元件被配置成引导光子跟随通过光学系统的第一路径; 第二引导元件被配置成引导光子跟随通过光学系统的第二路径，其中第二路径与第一路径相反，穿过第一路径的光子具有与通过第二路径行进的那些不同的极化; 以及改变跟随第一路径的光子与第二路径之后的光子之间的相对相移的机制。
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公开(公告)号：US07199372B2
公开(公告)日：2007-04-03
申请号：US10890180
申请日：2004-07-14
CPC分类号： H01L31/035236 , B82Y20/00 , G01J1/46 , G01J2001/442 , H01L31/1035
摘要： A circuit for conditioning the output of a single photon detector, the output of said detector having a stepped electrical output signal with respect to time, the circuit comprising a band pass amplifier, said band pass amplifier having a 3 dB breakpoint equal to and less than the inverse of the expected duration of the rising or falling step of said detector output.
摘要翻译： 用于调节单个光子检测器的输出的电路，所述检测器的输出相对于时间具有阶梯式电输出信号，所述电路包括带通放大器，所述带通放大器具有等于或小于3dB的3dB断点 所述检测器输出的上升或下降步长的预期持续时间的倒数。
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公开(公告)号：US07087923B2
公开(公告)日：2006-08-08
申请号：US10860484
申请日：2004-06-04
IPC分类号： H01L29/06
CPC分类号： B82Y20/00 , H01S5/1042 , H01S5/18347 , H01S5/341
摘要： A photon source comprising a quantum dot layer having a plurality of quantum dots with an n-modal distribution in emission wavelength, said n-modal distribution in emission wavelength comprising n peaks in a plot of dot density as a function of emission wavelength where n is an integer of at least 2, the photon source further comprising isolating means for isolating the emission from a predetermined number of quantum dots.
摘要翻译： 一种光子源，包括具有在发射波长中具有n模式分布的多个量子点的量子点层，发射波长中的所述n模式分布包括作为发射波长的函数的点密度的图中的n个峰，其中n是 至少为2的整数，光子源还包括隔离装置，用于将发射与预定数量的量子点隔离。
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公开(公告)号：US09071425B2
公开(公告)日：2015-06-30
申请号：US13422214
申请日：2012-03-16
CPC分类号： H04L9/0858 , H04B10/70
摘要： A quantum communication system including a sending unit and a receiving unit, said sending unit comprising a photon source assembly configured to output a stream of pulses of light having at least two different intensities and a memory configured to store information for determining which pulses should be reference pulses and which pulses should be data pulses, the average intensity of reference pulses being different to the average intensity of data pulses, the receiving unit comprising a memory for storing information for identifying the position of reference pulses within the stream of pulses and a processor for determining the calibration of the quantum communication system from the reference pulses.
摘要翻译： 一种包括发送单元和接收单元的量子通信系统，所述发送单元包括被配置为输出具有至少两个不同强度的光脉冲流的光子源组件和被配置为存储用于确定哪些脉冲应当被参考的信息的存储器 脉冲和哪些脉冲应该是数据脉冲，参考脉冲的平均强度不同于数据脉冲的平均强度，接收单元包括用于存储用于识别脉冲流内的参考脉冲的位置的信息的存储器，以及用于 从参考脉冲确定量子通信系统的校准。
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公开(公告)号：US08897057B2
公开(公告)日：2014-11-25
申请号：US13561843
申请日：2012-07-30
CPC分类号： G11C11/14 , B82Y10/00 , G02F1/015 , G02F2001/01791 , G11C7/005 , G11C13/04 , G11C2216/08
摘要： A quantum memory component including a quantum dot molecule having first and second quantum dots provided in respective first and second layers separated by a barrier layer; an exciton comprising an electron and hole bound state in said quantum dot molecule, the spin state of said exciton forming a qubit; first and second electrical contacts respectively provided below the first quantum dot and above the second quantum dot; a voltage source to apply an electric field across said quantum dot molecule; a controller to modulate the electric field across the quantum dot molecule, including an information acquiring circuit to acquire information concerning the relationship between fine structure splitting of the exciton and the applied electric field and a timing circuit to allow switching of the exciton from an indirect configuration to a direct configuration at predetermined times derived from the fine structure splitting.
摘要翻译： 一种量子存储器组件，包括量子点分子，其具有第一和第二量子点，该第一和第二量子点设置在由阻挡层隔开的相应的第一和第二 在所述量子点分子中包含电子和空穴结合状态的激子，所述激子的自旋状态形成量子位; 分别设置在第一量子点的下方且位于第二量子点的上方的第一和第二电触头; 用于在所述量子点分子上施加电场的电压源; 控制器，用于调制跨越量子点分子的电场，包括信息获取电路以获取关于激子的精细结构分裂与所施加的电场之间的关系的信息，以及定时电路，以允许从间接配置切换激子 以从精细结构分裂得到的预定时间的直接配置。
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公开(公告)号：US08670672B2
公开(公告)日：2014-03-11
申请号：US12834926
申请日：2010-07-13
IPC分类号： H04B10/12
CPC分类号： B82Y10/00 , G06N99/002 , H04L9/0858
摘要： According to one embodiment, a quantum information system includes a source of time dependent entangled photons and an indicating unit. The indicating unit indicates the entangled state of the entangled photons based on the emission time of one or more of the entangled photons.
摘要翻译： 根据一个实施例，量子信息系统包括时间依赖的纠缠光子源和指示单元。 指示单元基于一个或多个缠结光子的发射时间表示纠缠的光子的纠缠状态。
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公开(公告)号：US08238556B2
公开(公告)日：2012-08-07
申请号：US11530329
申请日：2006-09-08
IPC分类号： H04L29/08
CPC分类号： H04L9/0858 , H04B10/70
摘要： A quantum communication system comprising a sending unit and a receiving unit, said sending unit comprising a photon source assembly configured to output a stream of pulses of light having at least two different intensities and a memory configured to store information for determining which pulses should be reference pulses and which pulses should be data pulses, the average intensity of reference pulses being different to the average intensity of data pulses, the receiving unit comprising a memory for storing information for identifying the position of reference pulses within the stream of pulses and a processor for determining the calibration of the quantum communication system from the reference pulses.
摘要翻译： 一种包括发送单元和接收单元的量子通信系统，所述发送单元包括被配置为输出具有至少两个不同强度的光脉冲流的光子源组件和被配置为存储用于确定哪些脉冲应当参考的信息的存储器 脉冲和哪些脉冲应该是数据脉冲，参考脉冲的平均强度不同于数据脉冲的平均强度，接收单元包括用于存储用于识别脉冲流内的参考脉冲的位置的信息的存储器，以及用于 从参考脉冲确定量子通信系统的校准。
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公开(公告)号：US08227830B2
公开(公告)日：2012-07-24
申请号：US11292344
申请日：2005-12-02
IPC分类号： H01L33/06
CPC分类号： H01S5/18394 , B82Y10/00 , B82Y20/00 , H01S5/041 , H01S5/06216 , H01S5/105 , H01S5/18319 , H01S5/18327 , H01S5/18369 , H01S5/3412
摘要： A photon source comprising a photon source body, said photon source body comprising at least one quantum dot; carrier injection means for injecting carriers into said at least one quantum dot and change of state means for changing the state of the carriers within the quantum dot after a predetermined time duration, the carrier injection means injecting carriers which are configured to allow emission of radiation by radiative recombination.
摘要翻译： 一种包括光子源体的光子源，所述光子源体包括至少一个量子点; 用于将载流子注入所述至少一个量子点的载流子注入装置和在预定持续时间之后改变量子点内的载流子状态的装置，载流子注入装置注入被配置为允许通过 辐射重组。
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