公开(公告)号：US20120281225A1

公开(公告)日：2012-11-08

申请号：US13493844

申请日：2012-06-11

Applicant: Michel J.F. Digonnet ,  Shanhui Fan ,  Seth Lloyd

Inventor： Michel J.F. Digonnet ,  Shanhui Fan ,  Seth Lloyd

IPC: G01C19/72 ,  G01B9/02

CPC classification number: G01C19/721

Abstract: An optical sensor, a method of configuring an optical sensor, and a method of using an optical sensor are provided. The optical sensor includes an optical waveguide having a length and a laser source optically coupled to the waveguide. The laser source has a coherence length. Light from the source is transmitted to the waveguide as a first signal propagating along the waveguide in a first direction and a second signal propagating along the waveguide in a second direction opposite to the first direction. The optical paths of the first signal and the second signal are substantially reciprocal with one another and the first signal and the second signal are combined together after propagating through the waveguide to generate a third signal. The coherence length is greater than 1 meter or is in a range between 200 microns and 10 centimeters.

Abstract translation: 提供光学传感器，配置光学传感器的方法以及使用光学传感器的方法。 光学传感器包括具有光学耦合到波导的长度的光波导和激光源。 激光源具有相干长度。 源自光源的光作为沿着波导沿第一方向传播的第一信号被传输到波导，第二信号沿着与第一方向相反的第二方向沿着波导传播。 第一信号和第二信号的光路基本上彼此相互倒数，并且在通过波导传播之后将第一信号和第二信号组合在一起以产生第三信号。 相干长度大于1米或处于200微米至10厘米之间的范围内。

公开(公告)号：US20100302548A1

公开(公告)日：2010-12-02

申请号：US12767643

申请日：2010-04-26

Applicant: Michel J.F. Digonnet ,  Shanhui Fan ,  Seth Lloyd

Inventor： Michel J.F. Digonnet ,  Shanhui Fan ,  Seth Lloyd

IPC: G01C19/72 ,  G01B9/02

CPC classification number: G01C19/721

Abstract: A fiber-optic sensor, a method of configuring a fiber-optic sensor, and a method of using a fiber-optic sensor are provided. The fiber-optic sensor includes an optical fiber coil having a length and a laser source optically coupled to the coil. The laser source has a coherence length. Light from the source is transmitted to the coil as a first signal propagating along the coil in a first direction and a second signal propagating along the coil in a second direction opposite to the first direction. The optical paths of the first signal and the second signal are substantially reciprocal with one another and the first signal and the second signal are combined together after propagating through the coil to generate a third signal. The coherence length is greater than 1 meter or is in a range between 200 microns and 10 centimeters.

Abstract translation: 提供了光纤传感器，配置光纤传感器的方法以及使用光纤传感器的方法。 光纤传感器包括具有光学耦合到线圈的长度的光纤线圈和激光源。 激光源具有相干长度。 来自源极的光作为沿着线圈沿第一方向传播的第一信号被传输到线圈，而第二信号沿着与第一方向相反的第二方向沿着线圈传播。 第一信号和第二信号的光路基本上彼此相互倒数，并且第一信号和第二信号在传播通过线圈之后组合在一起以产生第三信号。 相干长度大于1米或处于200微米至10厘米之间的范围内。

公开(公告)号：US08289521B2

公开(公告)日：2012-10-16

申请号：US13027873

申请日：2011-02-15

Applicant: Stephane Blin ,  Michel J. F. Digonnet ,  Gordon S. Kino ,  Seth Lloyd

Inventor： Stephane Blin ,  Michel J. F. Digonnet ,  Gordon S. Kino ,  Seth Lloyd

IPC: G01C19/72

CPC classification number: G01C19/721

Abstract: A fiber-optic sensor includes an optical fiber coil and a laser source optically coupled to the coil. Light from the source is transmitted to the coil as a first optical signal and a second optical signal counter-propagating through the coil. The optical paths of the first optical signal and the second optical signal are substantially reciprocal with one another and the first optical signal and the second optical signal are combined together after counter-propagating through the coil to generate a third optical signal. The laser source is frequency-modulated or can have a coherence length longer than a length of the coil.

Abstract translation: 光纤传感器包括光纤线圈和光耦合到线圈的激光源。 来自光源的光作为第一光信号传输到线圈，第二光信号通过线圈反向传播。 第一光信号和第二光信号的光路基本上互相倒数，并且第一光信号和第二光信号在通过线圈反向传播之后被组合在一起，以产生第三光信号。 激光源被调频，或者可以具有比线圈长度更长的相干长度。

公开(公告)号：US20110176140A1

公开(公告)日：2011-07-21

申请号：US13027873

申请日：2011-02-15

Applicant: Stéphane Blin ,  Michel J.F. Digonnet ,  Gordon S. Kino ,  Seth Lloyd

Inventor： Stéphane Blin ,  Michel J.F. Digonnet ,  Gordon S. Kino ,  Seth Lloyd

IPC: G01C19/72

CPC classification number: G01C19/721

Abstract: A fiber-optic sensor includes an optical fiber coil and a laser source optically coupled to the coil. Light from the source is transmitted to the coil as a first optical signal and a second optical signal counter-propagating through the coil. The optical paths of the first optical signal and the second optical signal are substantially reciprocal with one another and the first optical signal and the second optical signal are combined together after counter-propagating through the coil to generate a third optical signal. The laser source is frequency-modulated or can have a coherence length longer than a length of the coil.

Abstract translation: 光纤传感器包括光纤线圈和光耦合到线圈的激光源。 来自光源的光作为第一光信号传输到线圈，第二光信号通过线圈反向传播。 第一光信号和第二光信号的光路基本上互相倒数，并且第一光信号和第二光信号在通过线圈反向传播之后被组合在一起，以产生第三光信号。 激光源被调频，或者可以具有比线圈长度更长的相干长度。

公开(公告)号：US07764568B2

公开(公告)日：2010-07-27

申请号：US12166307

申请日：2008-07-01

Applicant: Seth Lloyd ,  Vittorio Giovannetti ,  Lorenzo Maccone

Inventor： Seth Lloyd ,  Vittorio Giovannetti ,  Lorenzo Maccone

IPC: G11C8/00

CPC classification number: G11C8/04

Abstract: In an address signal decoder for a RAM memory, address signals are decoded in a “bucket brigade” address decoding architecture in which the address signals or bits are sequentially sent along the same address decoding path. The inventive architecture comprises a set of node switches linked into a binary tree. The address signals enter at the root node of the binary tree. As each address signal reaches a node switch at the end the path, it sets the path direction for that switch node so that subsequent address signals that follow the path will use that path direction. The decoder can be used with classical or quantum RAM memories.

Abstract translation: 在用于RAM存储器的地址信号解码器中，地址信号在“桶旅”地址解码架构中解码，其中地址信号或位沿着相同的地址解码路径顺序发送。 本发明的架构包括链接到二叉树的一组节点交换机。 地址信号进入二叉树的根节点。 当每个地址信号到达路径末端的节点交换机时，它设置该交换节点的路径方向，以便跟随该路径的后续地址信号将使用该路径方向。 解码器可以与经典或量子RAM存储器一起使用。

公开(公告)号：US20090012938A1

公开(公告)日：2009-01-08

申请号：US12145050

申请日：2008-06-24

Applicant: Seth Lloyd ,  Vittorio Giovannetti ,  Lorenzo Maccone

Inventor： Seth Lloyd ,  Vittorio Giovannetti ,  Lorenzo Maccone

IPC: G06F17/30

CPC classification number: G06F17/30964

Abstract: In a database query operation, a quantum private query (QPQ) protocol allows a user to determine whether the database provider has been trying to obtain information about their query by performing quantum superpositions of different queries in addition to performing normal queries. This means that, in addition to being able to request the jth or the kth records in the database, the user can also request both records in a quantum superposition. To find out whether the database provider is trying to discover her queries, the user sends proper superpositions of queries and then checks the answer provided by the database to determine whether the superposition has been preserved. If superposition has not been preserved, the user can be confident that the database provider has cheated, and has tried to obtain information on the query.

Abstract translation: 在数据库查询操作中，量子私有查询（QPQ）协议允许用户通过执行不同查询的量子叠加以及执行正常查询来确定数据库提供者是否已经尝试获取有关其查询的信息。 这意味着，除了能够请求数据库中的第j个或第k个记录之外，用户还可以以量子叠加来请求两个记录。 为了找出数据库提供者是否尝试发现她的查询，用户发送适当的查询叠加，然后检查数据库提供的答案，以确定叠加是否已被保留。 如果叠加未被保留，用户可以确信数据库提供者已经被欺骗，并尝试获取有关查询的信息。

公开(公告)号：US06873154B2

公开(公告)日：2005-03-29

申请号：US10462580

申请日：2003-06-16

Applicant: Tal Mor ,  Vwani Roychowdhury ,  Seth Lloyd ,  Jose Manuel Fernandez ,  Yossi Weinstein

Inventor： Tal Mor ,  Vwani Roychowdhury ,  Seth Lloyd ,  Jose Manuel Fernandez ,  Yossi Weinstein

IPC: G01R33/46 ,  G01V3/00

CPC classification number: G01R33/4608

Abstract: A method for decreasing entropy of a quantum system, for example nuclear spins. The quantum system comprising at least two subsystems, a first subsystem of elements with a first relaxation time (hereinafter—computation elements) and a second subsystem of elements with a second relaxation time (hereinafter—reset elements), the second relaxation time being shorter than the first relaxation time. The method comprises adiabatically decreasing the entropy of the computation elements in the system (by entropy compression, entropy transfer, or both) and increasing the entropy of at least some reset elements, so that the entropy of the subgroup of reset elements is overall increased; and waiting for the total entropy of the subgroup of reset elements to decrease, wherein the above two steps are carried out at least once.

Abstract translation: 一种降低量子系统熵的方法，例如核自旋。 所述量子系统包括至少两个子系统，具有第一弛豫时间的元件的第一子系统（以下称为计算元件）和具有第二弛豫时间的元件的第二子系统（以下称为复位元件），所述第二弛豫时间短于 第一个放松时间。 该方法包括绝对地减小系统中的计算元素（通过熵压缩，熵传递或两者）的熵，并增加至少一些复位元件的熵，使得复位元件子组的熵总体上增加; 并等待复位元件子组的总熵减小，其中上述两个步骤至少执行一次。

公开(公告)号：US08223340B2

公开(公告)日：2012-07-17

申请号：US12767643

申请日：2010-04-26

Applicant: Michel J. F. Digonnet ,  Shanhui Fan ,  Seth Lloyd

Inventor： Michel J. F. Digonnet ,  Shanhui Fan ,  Seth Lloyd

IPC: G01C19/72

CPC classification number: G01C19/721

Abstract: A fiber-optic sensor, a method of configuring a fiber-optic sensor, and a method of using a fiber-optic sensor are provided. The fiber-optic sensor includes an optical fiber coil having a length and a laser source optically coupled to the coil. The laser source has a coherence length. Light from the source is transmitted to the coil as a first signal propagating along the coil in a first direction and a second signal propagating along the coil in a second direction opposite to the first direction. The optical paths of the first signal and the second signal are substantially reciprocal with one another and the first signal and the second signal are combined together after propagating through the coil to generate a third signal. The coherence length is greater than 1 meter or is in a range between 200 microns and 10 centimeters.

Abstract translation: 提供了光纤传感器，配置光纤传感器的方法和使用光纤传感器的方法。 光纤传感器包括具有光学耦合到线圈的长度的光纤线圈和激光源。 激光源具有相干长度。 来自源极的光作为沿着线圈沿第一方向传播的第一信号被传输到线圈，而第二信号沿着与第一方向相反的第二方向沿着线圈传播。 第一信号和第二信号的光路基本上彼此相互倒数，并且第一信号和第二信号在传播通过线圈之后组合在一起以产生第三信号。 相干长度大于1米或处于200微米至10厘米之间的范围内。

公开(公告)号：US07911619B2

公开(公告)日：2011-03-22

申请号：US12271760

申请日：2008-11-14

Applicant: Stéphane Blin ,  Michel J. F. Digonnet ,  Gordon S. Kino ,  Seth Lloyd

Inventor： Stéphane Blin ,  Michel J. F. Digonnet ,  Gordon S. Kino ,  Seth Lloyd

IPC: G01C19/72

CPC classification number: G01C19/721

Abstract: A fiber-optic sensor includes an optical fiber coil and a laser source optically coupled to the coil. Light from the source is transmitted to the coil as a first signal propagating along the coil in a first direction and a second signal propagating along the coil in a second direction opposite to the first direction. The optical paths of the first signal and the second signal are substantially reciprocal with one another and the first signal and the second signal are combined together after propagating through the coil to generate a third signal. The laser source is frequency-modulated or can have a coherence length longer than a length of the coil.

Abstract translation: 光纤传感器包括光纤线圈和光耦合到线圈的激光源。 来自源极的光作为沿着线圈沿第一方向传播的第一信号被传输到线圈，而第二信号沿着与第一方向相反的第二方向沿着线圈传播。 第一信号和第二信号的光路基本上彼此相互倒数，并且第一信号和第二信号在传播通过线圈之后组合在一起以产生第三信号。 激光源被调频，或者可以具有比线圈长度更长的相干长度。

公开(公告)号：US20090010090A1

公开(公告)日：2009-01-08

申请号：US12166307

申请日：2008-07-01

Applicant: Seth Lloyd ,  Vittorio Giovannetti ,  Lorenzo Maccone

Inventor： Seth Lloyd ,  Vittorio Giovannetti ,  Lorenzo Maccone

IPC: G11C8/00

CPC classification number: G11C8/04

Abstract: In an address signal decoder for a RAM memory, address signals are decoded in a “bucket brigade” address decoding architecture in which the address signals or bits are sequentially sent along the same address decoding path. The inventive architecture comprises a set of node switches linked into a binary tree. The address signals enter at the root node of the binary tree. As each address signal reaches a node switch at the end the path, it sets the path direction for that switch node so that subsequent address signals that follow the path will use that path direction. The decoder can be used with classical or quantum RAM memories.

Abstract translation: 在用于RAM存储器的地址信号解码器中，地址信号在“桶旅”地址解码架构中解码，其中地址信号或位沿着相同的地址解码路径顺序发送。 本发明的架构包括链接到二叉树的一组节点交换机。 地址信号进入二叉树的根节点。 当每个地址信号到达路径末端的节点交换机时，它设置该交换节点的路径方向，以便跟随该路径的后续地址信号将使用该路径方向。 解码器可以与经典或量子RAM存储器一起使用。