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公开(公告)号：US09304371B2
公开(公告)日：2016-04-05
申请号：US13727058
申请日：2012-12-26
申请人： Richard Mark Stevenson , Joanna Krystyna Skiba-Szymanska , Anthony John Bennett , Andrew James Shields
发明人： Richard Mark Stevenson , Joanna Krystyna Skiba-Szymanska , Anthony John Bennett , Andrew James Shields
CPC分类号： G02F1/2257 , B82Y10/00 , B82Y20/00 , G02F1/01708 , G02F2001/01791 , G02F2202/32 , G06N99/002
摘要： An optical device comprising a quantum dot provided in a resonant confinement structure, an output from said confinement structure and a pulsed excitation source for said quantum dot, wherein the quantum dot is configured to allow the emission of photons having a first energy in response to a pulse from said excitation source, said resonant confinement structure providing optical confinement, the first energy being different to the resonant energy of the resonant confinement structure, the optical device further comprising a timing unit, said timing unit being configured to select photons which have been emitted from the quantum dot due to excitation by a pulse, the timing unit selecting photons emitted after the duration of the pulse which caused the emission of the photons.
摘要翻译： 一种光学装置，包括设置在谐振限制结构中的量子点，来自所述限制结构的输出和用于所述量子点的脉冲激励源，其中所述量子点被配置为允许响应于所述量子点发射具有第一能量的光子 所述谐振限制结构提供光限制，所述第一能量与所述谐振限制结构的谐振能不同，所述光学装置还包括定时单元，所述定时单元被配置为选择已发射的光子 由于由脉冲激发而产生的量子点，定时单元选择在导致光子发射的脉冲持续时间之后发射的光子。
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公开(公告)号：US20130256504A1
公开(公告)日：2013-10-03
申请号：US13727058
申请日：2012-12-26
申请人： Richard Mark STEVENSON , Joanna Krystyna Skiba-Szymanska , Anthony John Bennett , Andrew James Shields
发明人： Richard Mark STEVENSON , Joanna Krystyna Skiba-Szymanska , Anthony John Bennett , Andrew James Shields
IPC分类号： G02F1/225
CPC分类号： G02F1/2257 , B82Y10/00 , B82Y20/00 , G02F1/01708 , G02F2001/01791 , G02F2202/32 , G06N99/002
摘要： An optical device comprising a quantum dot provided in a resonant confinement structure, an output from said confinement structure and a pulsed excitation source for said quantum dot, wherein the quantum dot is configured to allow the emission of photons having a first energy in response to a pulse from said excitation source, said resonant confinement structure providing optical confinement, the first energy being different to the resonant energy of the resonant confinement structure, the optical device further comprising a timing unit, said timing unit being configured to select photons which have been emitted from the quantum dot due to excitation by a pulse, the timing unit selecting photons emitted after the duration of the pulse which caused the emission of the photons.
摘要翻译： 一种光学装置，包括设置在谐振限制结构中的量子点，来自所述限制结构的输出和用于所述量子点的脉冲激励源，其中所述量子点被配置为允许响应于所述量子点发射具有第一能量的光子 所述谐振限制结构提供光限制，所述第一能量与所述谐振限制结构的谐振能不同，所述光学装置还包括定时单元，所述定时单元被配置为选择已发射的光子 由于由脉冲激发而产生的量子点，定时单元选择在导致光子发射的脉冲持续时间之后发射的光子。
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公开(公告)号：US08461569B2
公开(公告)日：2013-06-11
申请号：US13104368
申请日：2011-05-10
IPC分类号： H01L29/06
CPC分类号： H01L29/125 , B82Y10/00 , H01L33/0062 , H01L33/06 , H01L33/105 , H01L2933/0083 , H01S5/105 , H01S5/183 , H01S5/3412 , H01S2301/173 , H01S2304/04
摘要： A semiconductor device includes a quantum dot and a plurality of layers, wherein said plurality of layers includes: a first layer; a stressor layer; and a patterned layer wherein said stressor layer overlies said first layer and said patterned layer overlies said stressor layer; wherein said stressor layer has a substantially different lattice constant to said first layer and said patterned layer and has a pit provided in said layer; said quantum dot lying above said patterned layer aligned with said pit.
摘要翻译： 半导体器件包括量子点和多个层，其中所述多个层包括：第一层; 压力层; 以及图案化层，其中所述应力层覆盖所述第一层，并且所述图案化层覆盖所述应力层; 其中所述应力层具有与所述第一层和所述图案化层基本不同的晶格常数，并且在所述层中具有凹坑; 所述量子点位于与所述凹坑对准的所述图案化层之上。
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公开(公告)号：US20110242632A1
公开(公告)日：2011-10-06
申请号：US13039893
申请日：2011-03-03
CPC分类号： G06N99/002 , B82Y10/00
摘要： A component comprising a qubit and a controller for said qubit, said component comprising a quantum dot and an excitation portion configured to produce a neutral exciton state in said quantum dot to form said qubit, the component further comprising a measuring unit to make an optical measurement relating to the orientation of said state, wherein said controller comprises voltage source coupled to electrical contacts configured to apply a modulated electric field across said quantum dot, wherein the modulation is faster than the decay time of said neutral exciton state.
摘要翻译： 一种包括量子位的组件和用于所述量子位的控制器，所述组件包括量子点和激励部分，其被配置为在所述量子点中产生中性激子状态以形成所述量子位，所述组件还包括测量单元以进行光学测量 涉及所述状态的取向，其中所述控制器包括耦合到电触点的电压源，所述电触点被配置为在所述量子点上施加调制电场，其中所述调制比所述中性激子状态的衰减时间快。
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公开(公告)号：US08547617B2
公开(公告)日：2013-10-01
申请号：US13039893
申请日：2011-03-03
IPC分类号： G06E3/00
CPC分类号： G06N99/002 , B82Y10/00
摘要： A component comprising a qubit and a controller for said qubit, said component comprising a quantum dot and an excitation portion configured to produce a neutral exciton state in said quantum dot to form said qubit, the component further comprising a measuring unit to make an optical measurement relating to the orientation of said state, wherein said controller comprises voltage source coupled to electrical contacts configured to apply a modulated electric field across said quantum dot, wherein the modulation is faster than the decay time of said neutral exciton state.
摘要翻译： 一种包括量子位的组件和用于所述量子位的控制器，所述组件包括量子点和激励部分，其被配置为在所述量子点中产生中性激子状态以形成所述量子位，所述组件还包括测量单元以进行光学测量 涉及所述状态的取向，其中所述控制器包括耦合到电触点的电压源，所述电触点被配置为在所述量子点上施加调制电场，其中所述调制比所述中性激子状态的衰减时间快。
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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：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：US08605288B2
公开(公告)日：2013-12-10
申请号：US12600598
申请日：2008-05-16
IPC分类号： G01B9/02
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为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行进通过第二路径的那些不同的极化; 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：US20110013906A1
公开(公告)日：2011-01-20
申请号：US12834926
申请日：2010-07-13
IPC分类号： H04B10/08
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：US07132676B2
公开(公告)日：2006-11-07
申请号：US10145140
申请日：2002-05-15
IPC分类号： H01L29/06
CPC分类号： H01S5/10 , B82Y20/00 , H01S5/041 , H01S5/1042 , H01S5/105 , H01S5/3412
摘要： A photon source comprising a quantum dot comprising a confined conduction band energy level capable of being populated with at least one carrier and a confined valence band energy level capable of being populated by at least one carrier is provided, the source further comprises supply means for intermittently supplying at least one carrier to the energy levels to create an exciton in the quantum dot, wherein the supply means are configured to regulate the supply of carriers such that as the exciton decays either a single photon or a plurality of single photons each having different distinct energies are emitted during a predetermined time interval. The source is configured to be able to enhance the production of a desired type of exciton and can also be configured to exploit the use of higher order excitons such as biexcitons.
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