公开(公告)号：US20130070329A1

公开(公告)日：2013-03-21

申请号：US13563899

申请日：2012-08-01

申请人： Satoshi Nakamura ,  Hayato Goto ,  Mamiko Kujiraoka ,  Kouichi Ichimura

发明人： Satoshi Nakamura ,  Hayato Goto ,  Mamiko Kujiraoka ,  Kouichi Ichimura

IPC分类号： G02F1/33

CPC分类号： G02F1/33 ,  G02F1/11 ,  G02F2201/56

摘要： According to one embodiment, an acousto-optic modulator includes an acousto-optic medium and a piezoelectric transducer. The acousto-optic medium has a configuration of a hexahedron. The acousto-optic medium has surfaces D, E, F, G and H. The piezoelectric transducer is provided on a surface C of the acousto-optic medium. The surface D opposes the surface C and has respective four sides shared by the surfaces E, F, G and H. Four angles defined between the surface D and the surfaces E, F, G and H each is other than 90°. At least one of eight angles defined between each pair of the surfaces C, E, F, G and H is other than 90°. The each pair has one shared side.

摘要翻译： 根据一个实施例，声光调制器包括声光介质和压电换能器。 声光介质具有六面体的构造。 声光介质具有表面D，E，F，G和H.压电换能器设置在声光介质的表面C上。 表面D与表面C相对，并且具有由表面E，F，G和H共享的相应的四个面。表面D和表面E，F，G和H之间限定的四个角度不同于90°。 在每对表面C，E，F，G和H之间限定的八个角度中的至少一个不超过90°。 每对都有一个共享的一面。

公开(公告)号：US08218232B2

公开(公告)日：2012-07-10

申请号：US12233960

申请日：2008-09-19

申请人： Satoshi Mitsugi ,  Kouichi Ichimura ,  Hayato Goto

发明人： Satoshi Mitsugi ,  Kouichi Ichimura ,  Hayato Goto

IPC分类号： H01S3/08 ,  H01P7/06

CPC分类号： G06N99/002 ,  B82Y10/00 ,  G02F2202/32 ,  G02F2203/15

摘要： An optical resonator includes a master resonator configured to resonate an electromagnetic wave, one structure or a pair of structures adjacent to each other, each of which is arranged at a position that overlaps one of resonance modes of the master resonator, is made up of a material in which a real part of a permittivity assumes a negative value, and an absolute value of the real part is larger than an absolute value of an imaginary part of the permittivity, and has a size which makes scattering that the electromagnetic wave suffers be Rayleigh scattering, and one or a plurality of particles, each of which is laid out near the structure by a distance smaller than the size of the structure.

摘要翻译： 光谐振器包括主谐振器，其被配置为谐振彼此相邻的电磁波，一个结构或一对结构，每个结构布置在与主谐振器的谐振模式之一重叠的位置处，由 介电常数的实部呈现负值的材料，实部的绝对值大于介电常数的虚部的绝对值，并且具有使电磁波受到的散射的尺寸为瑞利 散射，以及一个或多个颗粒，每个颗粒在结构附近布置成比结构尺寸小的距离。

公开(公告)号：US20120069414A1

公开(公告)日：2012-03-22

申请号：US13050628

申请日：2011-03-17

申请人： Satoshi Nakamura ,  Kouichi Ichimura ,  Hayato Goto

发明人： Satoshi Nakamura ,  Kouichi Ichimura ,  Hayato Goto

IPC分类号： G06E3/00 ,  B82Y10/00

CPC分类号： G06N99/002 ,  B82B1/00 ,  B82Y10/00 ,  B82Y20/00 ,  Y10S977/933

摘要： An operating method for stimulated Raman adiabatic passage to change probability amplitude in a three-level system including states of |0>, |1> and |e>, includes the following two steps. One is to direct a first laser beam and a second laser beam which have frequencies in the vicinity of resonance frequencies corresponding to energy differences between |0> and |e> and between |1> and |e>, respectively. The other is to change temporally two-photon detuning to be a difference between first detuning and second detuning. The first detuning is a difference between a first energy difference and a frequency of the first laser beam. The first energy difference is a difference between energy of |0> and energy of |e>. The second detuning is a difference between a second energy difference and a frequency of the second laser beam. The second energy difference is a difference between energy of |1> and energy of |e>.

摘要翻译： 用于改变包括| 0>，| 1>和| e>的状态的三级系统中的概率幅度的受激拉曼绝热通道的操作方法包括以下两个步骤。 一个是分别引导第一激光束和第二激光束，该激光束和第二激光束在谐振频率附近分别对应于| 0>和| e>之间的能量差和在| 1>和| e>之间。 另一种是将时间上的双光子失谐改变为第一失谐和第二失谐之间的差异。 第一失谐是第一能量差和第一激光束的频率之间的差。 第一个能量差是| 0的能量与| e>的能量之间的差。 第二失谐是第二能量差和第二激光束的频率之间的差。 第二能量差是| 1的能量与| e>的能量之间的差。

公开(公告)号：US07826115B2

公开(公告)日：2010-11-02

申请号：US12236005

申请日：2008-09-23

申请人： Hayato Goto ,  Kouichi Ichimura

发明人： Hayato Goto ,  Kouichi Ichimura

IPC分类号： G02F3/00

CPC分类号： G06N99/002 ,  B82Y10/00

摘要： An (N+1) number of physical systems each having five energy levels |0>, |1>, |2>, |3>, and |4>, a qubit being expressed by |0> and |1>, are provided in an optical cavity having a cavity mode resonant with |2>-|3>, such that an N number of control systems and a target system are prepared. The target system is irradiated with light pulses resonant with |0>-|4>, |1>-|4>, and |2>-|4> to change a superposed state |c> to |2>. All of the physical systems are irradiated with light pulses resonant with |0>-|3> and |1>-|3>, and a phase of the light pulse resonant with the target system is shifted by a specific value dependent on a unitary transformation U. The target system is irradiated with light pulses resonant with |0>-|4>, |1>-|4>, and |2>-|4>, with a phase difference between them being set to a specific value dependent on the unitary transformation U, to return |2> to |c>.

摘要翻译： 由| 0>和| 1>表示的量子位的每个具有五个能级的物理系统的数量（N + 1）分别为：| 0>，| 1>，| 2>，| 3>和| 4> 设置在具有与| 2> - | 3>共振的腔模式的光学腔中，使得准备N个控制系统和目标系统。 用| 0> - | 4>，| 1> - | 4>和| 2> - | 4>共振的光脉冲照射目标系统，以将叠加状态c>更改为| 2>。 所有的物理系统都用与光电脉冲共振的光脉冲进行照射，并且与目标系统共振的光脉冲的相位偏移一个取决于单位的特定值 用| 0> - | 4>，| 1> - | 4>和| 2> - | 4>共振的光脉冲照射目标系统，将它们之间的相位差设定为特定值 依赖于酉变换U，返回| 2>到| c>。

公开(公告)号：US20090030962A1

公开(公告)日：2009-01-29

申请号：US12236005

申请日：2008-09-23

申请人： Hayato Goto ,  Kouichi Ichimura

发明人： Hayato Goto ,  Kouichi Ichimura

IPC分类号： G06F7/00

CPC分类号： G06N99/002 ,  B82Y10/00

摘要： An (N+1) number of physical systems each having five energy levels |0>, |1>, |2>, |3>, and |4>, a qubit being expressed by |0> and |1>, are provided in an optical cavity having a cavity mode resonant with |2>-|3>, such that an N number of control systems and a target system are prepared. The target system is irradiated with light pulses resonant with |0>-|4>, |1>-|4>, and |2>-|4> to change a superposed state |c> to |2>. All of the physical systems are irradiated with light pulses resonant with |0>-|3> and |1>-|3>, and a phase of the light pulse resonant with the target system is shifted by a specific value dependent on a unitary transformation U. The target system is irradiated with light pulses resonant with |0>-|4>, |1>-|4>, and |2>-|4>, with a phase difference between them being set to a specific value dependent on the unitary transformation U, to return |2> to |c>.

摘要翻译： 由| 0>和| 1>表示的量子位的每个具有五个能级的物理系统的数量（N + 1）分别为：| 0>，| 1>，| 2>，| 3>和| 4> 设置在具有与| 2> - | 3>共振的腔模式的光学腔中，使得准备N个控制系统和目标系统。 用| 0> - | 4>，| 1> - | 4>和| 2> - | 4>共振的光脉冲照射目标系统，以将叠加状态c>更改为| 2>。 所有的物理系统都用与光电脉冲共振的光脉冲进行照射，并且与目标系统谐振的光脉冲的相位偏移一个取决于单位的特定值 用| 0> - | 4>，| 1> - | 4>和| 2> - | 4>共振的光脉冲照射目标系统，将它们之间的相位差设定为特定值 依赖于酉变换U，返回| 2>到| c>。

公开(公告)号：US07466725B2

公开(公告)日：2008-12-16

申请号：US11212690

申请日：2005-08-29

申请人： Kouichi Ichimura ,  Hayato Goto ,  Noritsugu Shiokawa

发明人： Kouichi Ichimura ,  Hayato Goto ,  Noritsugu Shiokawa

IPC分类号： H01S3/00

CPC分类号： G06N99/002 ,  B82Y10/00

摘要： Quantum computer includes optical resonator including system group containing systems each having energy states highest-energy state |3>, and other two energy states |1> and |2>, fourth or more states |p>, transition angular frequency (ωij) between |i> and |j>, homogeneous broadening (Δωhomo,ij) in transition angular frequency between |i> and |j>, optical resonator having resonator modes, ωck of kth resonator mode, and emitting unit configured to emit light beam to system group, and wherein |ωcl−ωcm|>Δωhomo,23, system group includes system subgroups Aq having respective ω23 which resonate with respective ωcq of resonator modes, and emitting unit is arranged to apply light beam of two wavelengths and other light beam to s(1)th quantum bit Aqs(1) (s(1)1˜r) formed of r systems selected from each Aq, light beam of two wavelengths simultaneously causing two-photon resonance on Aq at ω12 or ω1p, other light beam simultaneously causing one-photon resonance on Aq at ω13 or ωp3.

摘要翻译： 量子计算机包括光学谐振器，包括系统组含有系统，每个系统组包含系统，每个系统具有能量状态最高能量状态| 3>，以及其他两个能量状态| 1>和| 2>，第四或更多个状态| p>，过渡角频率（ωgaij） | i>和| j>，在| i>和| j>之间的过渡角频率中的均匀扩展（Deltaomegahomo，ij），具有谐振模式的光谐振器，第k谐振器模式的谐波，以及被配置为发射光束到系统的发射单元 组，其中|ωgac1-ωgmm|> Deltaomegahomo，23系统组包括具有与谐振器模式的相应ωcacq共振的各个ω323的系统子组Aq，并且发射单元被布置为将两个波长的光束和其他光束施加到s 由从每个Aq选择的r系统形成的量子比特Aqs（1）（s（1）1〜r），两个波长的光束同时在ω1或ω1p上的Aq上产生双光子共振，同时产生其他光束 造成一张照片 在ω-13或ωg3上的Aq上的共振。

公开(公告)号：US20080232814A1

公开(公告)日：2008-09-25

申请号：US12126081

申请日：2008-05-23

申请人： KOUICHI ICHIMURA ,  Noritsugu Shiokawa

发明人： KOUICHI ICHIMURA ,  Noritsugu Shiokawa

IPC分类号： H04B10/02

CPC分类号： H04B10/70 ,  H04L9/0852

摘要： A quantum communication apparatus is used in operations to generate entanglement between the two physical system ensembles and operations to extend the distance between entangled ensembles by connecting pairs of entangled ensembles. The apparatus uses only passive elements without any actuating parts, active devices having no mechanically actuating parts, such as an electro-optical device capable of ultrahigh-speed operation, and a laser source capable of generating high-speed pulse trains or a continuous wave laser source. The apparatus can rapidly execute light irradiation necessary for entanglement generation and connection, and detection of a generated photon at the needed sites within a decoherence time of the physical system.

摘要翻译： 在操作中使用量子通信设备来产生两个物理系统集合之间的纠缠，以及通过连接成对的纠缠组合来延伸缠结的组合之间的距离的操作。 该装置仅使用无源元件而没有任何致动部件，不具有机械致动部件的有源器件，例如能够超高速操作的电光器件，以及能够产生高速脉冲串或连续波激光器的激光源 资源。 该装置可以快速地执行纠缠生成和连接所需的光照射，以及在物理系统的去相干时间内在所需位置处检测所产生的光子。

公开(公告)号：US20080231837A1

公开(公告)日：2008-09-25

申请号：US12046161

申请日：2008-03-11

申请人： Kouichi ICHIMURA ,  Hayato Goto

发明人： Kouichi ICHIMURA ,  Hayato Goto

IPC分类号： G01N21/00

CPC分类号： G06N99/002 ,  B82Y10/00

摘要： An apparatus includes a material in a resonator and containing systems, each of the systems having five energy states, a unit generating first and second pulse that resonate in a second transition and a third transition, respectively, a unit controlling the first and second pulse to make the first and second pulse temporally overlap each other to obtain third light, a unit emitting the third light to each system, a unit generating observation light to be coupled to the resonator mode, a unit introducing the observation light to the resonator from an outside thereof, a unit reading one of quantum bits by measuring an intensity of one of reflected light and transmitted light of the observation light, a unit controlling the first and second pulse to make the first and second pulse temporally overlap each other to obtain fourth light, and a unit emitting the fourth light to each system.

摘要翻译： 一种装置包括在谐振器中并包含系统的材料，每个系统具有五个能量状态，分别产生在第二过渡和第三转变中共振的第一和第二脉冲的单元，控制第一和第二脉冲的单元 使第一和第二脉冲在时间上彼此重叠以获得第三光，向每个系统发射第三光的单元，产生要耦合到谐振器模式的观察光的单元，从外部将观察光引入谐振器的单元 通过测量观察光的反射光和透射光中的一个的强度来读取量子位之一的单元，控制第一和第二脉冲以使第一和第二脉冲在时间上彼此重叠以获得第四光的单元， 以及向每个系统发射第四个光的单元。

公开(公告)号：US20060043357A1

公开(公告)日：2006-03-02

申请号：US11212690

申请日：2005-08-29

申请人： Kouichi Ichimura ,  Hayato Goto ,  Noritsugu Shiokawa

发明人： Kouichi Ichimura ,  Hayato Goto ,  Noritsugu Shiokawa

IPC分类号： H01L31/109 ,  G06N7/02 ,  H01L29/06 ,  G06F9/44 ,  H01L31/0328 ,  G06N7/06 ,  H01L31/0336 ,  H01L31/072

CPC分类号： G06N99/002 ,  B82Y10/00

摘要： Quantum computer includes optical resonator including system group containing systems each having energy states highest-energy state |3>, and other two energy states |1> and |2>, fourth or more states |p>, transition angular frequency (ωij) between |i> and |j>, homogeneous broadening (Δωhomo,ij) in transition angular frequency between |i> and |j>, optical resonator having resonator modes, ωck of kth resonator mode, and emitting unit configured to emit light beam to system group, and wherein |ωcl−ωcm|>Δωhomo,23, system group includes system subgroups Aq having respective ω23 which resonate with respective ωcq of resonator modes, and emitting unit is arranged to apply light beam of two wavelengths and other light beam to s(1)th quantum bit Aqs(1) (s(1)1˜r) formed of r systems selected from each Aq, light beam of two wavelengths simultaneously causing two-photon resonance on Aq at ω12 or ω1p, other light beam simultaneously causing one-photon resonance on Aq at ω13 or ωp3.

摘要翻译： 量子计算机包括光学谐振器，其包括系统组包含的系统，每个系统组具有能量状态最高能量状态| 3>，以及其它两个能量状态| 1>和| 2>，第四或更多个状态| p>，转换角频率 在| i>和| j>之间的跃迁角频率的均匀增宽（Deltaomega，同样的），具有谐振器模式的光谐振器， 第k谐振器模式的ω-ck ，以及被配置为将光束发射到系统组的发射单元，并且其中|ω＆lt;＆lt;＆gt; 系统组包括具有各自ωω23的系统子组，其与各自的ω加以共振 谐振器模式的Cq ，并且发光单元被布置成将两个波长的光束和其他光束施加到s（1）第<！ - SIPO - >量子位A s ）由从每个A q选择的r系统形成的（s（1）1〜r），光bea 两个波长的m同时在ω12或ω1 p 1处在A <！ - SIPO - >上产生双光子共振，其他光束同时引起单光子共振 在ω13或ω3 p 3上的A 3上。

公开(公告)号：US08934172B2

公开(公告)日：2015-01-13

申请号：US13541812

申请日：2012-07-05

申请人： Hayato Goto ,  Kouichi Ichimura

发明人： Hayato Goto ,  Kouichi Ichimura

IPC分类号： G02B1/10 ,  G02B5/08

CPC分类号： G02B5/0816 ,  G02B5/0825

摘要： According to one embodiment, a mirror includes a plurality of dielectric layers stacked in a first direction. A thickness along the first direction of each of the dielectric layers is half a design wavelength. The dielectric layers include a first dielectric layer. The first dielectric layer includes a first portion with a thickness being ⅛ of the design wavelength, a second portion stacked with the first portion with a thickness being ⅛ of the design wavelength, and a third portion provided between the first and second portions with a thickness being ¼ of the design wavelength. The second portion has a refractive index lower than that of the first portion. The third portion has a refractive index gradually decreasing from a side of the first portion toward a side of the second portion.

摘要翻译： 根据一个实施例，反射镜包括沿第一方向堆叠的多个电介质层。 每个电介质层沿着第一方向的厚度是设计波长的一半。 电介质层包括第一电介质层。 第一介电层包括厚度为设计波长的第一部分，第二部分与第一部分堆叠，厚度为设计波长的，，第三部分设置在第一和第二部分之间，厚度为 是设计波长的1/4。 第二部分的折射率低于第一部分的折射率。 第三部分的折射率从第一部分侧朝向第二部分侧逐渐减小。