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1. 发明授权

US08138880B2 Persistent current switch 有权
标题翻译：持续电流开关
公开(公告)号：US08138880B2
公开(公告)日：2012-03-20
申请号：US12182411
申请日：2008-07-30
申请人： George A. Keefe , Roger H. Koch , Inga Koch, legal representative , Frank P. Milliken, Jr. , James R. Rozen
发明人： George A. Keefe , Roger H. Koch , Frank P. Milliken, Jr. , James R. Rozen
IPC分类号： H01L39/18 , H01L39/20
CPC分类号： H01L39/18 , B82Y10/00 , G06N99/002
摘要： An improved persistent current switch design and method of operation are disclosed. By way of example, a persistent current switch circuit comprises a heating element and a switch element located proximate to the heating element, the switch element being substantially formed from a material (by way of example only, titanium) which exhibits a superconducting temperature value below a superconducting temperature value exhibited by a material (by way of example only, aluminum) used to provide a connection to the switch element. The switch element is responsive to the heating element such that the heating element is used to control whether or not the switch element is in a superconducting state. The switch element may also have a folded geometry. Such persistent current switches exhibit low power and low inductance.
摘要翻译：公开了一种改进的持续电流开关设计和操作方法。作为示例，持续电流开关电路包括加热元件和位于加热元件附近的开关元件，开关元件基本上由表现出超导温度值的材料（仅作为示例使用钛）形成超导温度值由用于提供与开关元件的连接的材料（仅作为示例仅使用铝）表现出来。开关元件响应于加热元件，使得加热元件用于控制开关元件是否处于超导状态。开关元件也可以具有折叠的几何形状。这种持续电流开关表现出低功率和低电感。

2. 发明申请

US20100026447A1 Persistent Current Switch 有权
标题翻译：持久电流开关
公开(公告)号：US20100026447A1
公开(公告)日：2010-02-04
申请号：US12182411
申请日：2008-07-30
申请人： George A. Keefe , Roger H. Koch , Inga Koch , Frank P. Milliken, JR. , James R. Rozen
发明人： George A. Keefe , Roger H. Koch , Inga Koch , Frank P. Milliken, JR. , James R. Rozen
IPC分类号： H01L39/16 , H02H7/00
CPC分类号： H01L39/18 , B82Y10/00 , G06N99/002
摘要： An improved persistent current switch design and method of operation are disclosed. By way of example, a persistent current switch circuit comprises a heating element and a switch element located proximate to the heating element, the switch element being substantially formed from a material (by way of example only, titanium) which exhibits a superconducting temperature value below a superconducting temperature value exhibited by a material (by way of example only, aluminum) used to provide a connection to the switch element. The switch element is responsive to the heating element such that the heating element is used to control whether or not the switch element is in a superconducting state. The switch element may also have a folded geometry. Such persistent current switches exhibit low power and low inductance.
摘要翻译：公开了一种改进的持续电流开关设计和操作方法。作为示例，持续电流开关电路包括加热元件和位于加热元件附近的开关元件，开关元件基本上由表现出超导温度值的材料（仅作为示例使用钛）形成超导温度值由用于提供与开关元件的连接的材料（仅作为示例仅使用铝）表现出来。开关元件响应于加热元件，使得加热元件用于控制开关元件是否处于超导状态。开关元件也可以具有折叠的几何形状。这种持续电流开关表现出低功率和低电感。

3. 发明授权

US07925614B2 Method and structure to isolate a qubit from the environment 有权
标题翻译：从环境中隔离量子比特的方法和结构
公开(公告)号：US07925614B2
公开(公告)日：2011-04-12
申请号：US11847203
申请日：2007-08-29
申请人： Guido Burkard , David P. DiVincenzo , George A. Keefe , Roger H. Koch , James R. Rozen
发明人： Guido Burkard , David P. DiVincenzo , George A. Keefe , Roger H. Koch , James R. Rozen
IPC分类号： G06F15/00 , G06F15/18
CPC分类号： G06N99/002 , B82Y10/00
摘要： A method (and structure) of coupling a qubit includes locating the qubit near a transmission line approximately at a location corresponding to a node at a predetermined frequency.
摘要翻译：耦合量子位的方法（和结构）包括在传输线附近定位量子位，大致在与预定频率的节点对应的位置处。

4. 发明授权

US08745850B2 Method of manufacturing superconducting low pass filter for quantum computing 有权
标题翻译：用于量子计算的超导低通滤波器的制造方法
公开(公告)号：US08745850B2
公开(公告)日：2014-06-10
申请号：US12642331
申请日：2009-12-18
申请人： Matthew J. Farinelli , George A. Keefe , Frank Milliken, Jr. , James R. Rozen
发明人： Matthew J. Farinelli , George A. Keefe , Frank Milliken, Jr. , James R. Rozen
IPC分类号： H03H1/00 , H03H3/00 , H03H7/01
CPC分类号： H03H7/0115 , B82Y10/00 , G06N99/002 , H01L39/24 , H03H1/00 , H03H3/00 , H03H2001/005 , H03H2001/0057 , H03H2001/0092
摘要： An apparatus and method for manufacturing a superconducting low-pass filter for quantum computing devices. The apparatus includes a plurality of containers and input and output ports connected to opposite ends of the apparatus. A plurality of coils of superconducting wire are wound using a mandrel. An adhesive is applied to the coils for maintaining a wound state. Each of the coils are positioned in each of the containers and electrically connected to each other with at least one coil being connected to the input port and at least one coil being connected to the output port. The coils are released or expanded from their wound state using an adhesive solvent. The containers are then filled with a conductive polymer and the containers are closed with one or more covers.
摘要翻译：一种用于制造用于量子计算设备的超导低通滤波器的装置和方法。该装置包括多个容器和连接到该装置的相对端的输入和输出端口。使用心轴缠绕多根超导线圈。对线圈施加粘合剂以保持缠绕状态。每个线圈定位在每个容器中并且彼此电连接，至少一个线圈连接到输入端口，并且至少一个线圈连接到输出端口。线圈使用粘合剂溶剂从其缠绕状态释放或膨胀。然后将容器用导电聚合物填充，并且用一个或多个盖封闭容器。

5. 发明申请

US20110152104A1 Superconducting Low Pass Filter for Quantum Computing and Method of Manufacturing the Same 有权
标题翻译：用于量子计算的超导低通滤波器及其制造方法
公开(公告)号：US20110152104A1
公开(公告)日：2011-06-23
申请号：US12642331
申请日：2009-12-18
申请人： Matthew Farinelli , George A. Keefe , Frank Milliken, JR. , James R. Rozen
发明人： Matthew Farinelli , George A. Keefe , Frank Milliken, JR. , James R. Rozen
IPC分类号： H03H7/01 , H01L39/24 , H01P1/203
CPC分类号： H03H7/0115 , B82Y10/00 , G06N99/002 , H01L39/24 , H03H1/00 , H03H3/00 , H03H2001/005 , H03H2001/0057 , H03H2001/0092
摘要： An apparatus and method for manufacturing a superconducting low-pass filter for quantum computing devices. The apparatus includes a plurality of containers and input and output ports connected to opposite ends of the apparatus. A plurality of coils of superconducting wire are wound using a mandrel. An adhesive is applied to the coils for maintaining a wound state. Each of the coils are positioned in each of the containers and electrically connected to each other with at least one coil being connected to the input port and at least one coil being connected to the output port. The coils are released or expanded from their wound state using an adhesive solvent. The containers are then filled with a conductive polymer and the containers are closed with one or more covers.
摘要翻译：一种用于制造用于量子计算设备的超导低通滤波器的装置和方法。该装置包括多个容器和连接到该装置的相对端的输入和输出端口。使用心轴缠绕多根超导线圈。对线圈施加粘合剂以保持卷绕状态。每个线圈定位在每个容器中并且彼此电连接，至少一个线圈连接到输入端口，并且至少一个线圈连接到输出端口。线圈使用粘合剂溶剂从其缠绕状态释放或膨胀。然后将容器用导电聚合物填充，并且用一个或多个盖封闭容器。

6. 发明授权

US07321884B2 Method and structure to isolate a qubit from the environment 有权
标题翻译：从环境中隔离量子比特的方法和结构
公开(公告)号：US07321884B2
公开(公告)日：2008-01-22
申请号：US10782811
申请日：2004-02-23
申请人： Guido Burkard , David P. DiVincenzo , George A. Keefe , Roger H. Koch , James R. Rozer
发明人： Guido Burkard , David P. DiVincenzo , George A. Keefe , Roger H. Koch , James R. Rozer
IPC分类号： G06F17/00 , G06N5/02
CPC分类号： G06N99/002 , B82Y10/00
摘要： A method (and structure) of coupling a qubit includes locating the qubit near a transmission line approximately at a location corresponding to a node at a predetermined frequency.
摘要翻译：耦合量子位的方法（和结构）包括在传输线附近定位量子位，大致在与预定频率的节点对应的位置。

7. 发明授权

US08294138B2 Microwave readout for flux-biased qubits 有权
标题翻译：用于磁通偏置量子位的微波读数
公开(公告)号：US08294138B2
公开(公告)日：2012-10-23
申请号：US13026339
申请日：2011-02-14
申请人： Matthew J. Farinelli , George A. Keefe , Shwetank Kumar , Matthias Steffen
发明人： Matthew J. Farinelli , George A. Keefe , Shwetank Kumar , Matthias Steffen
IPC分类号： H01L39/22
CPC分类号： G06N99/002 , B82Y10/00
摘要： A method for determining whether a quantum system comprising a superconducting qubit is occupying a first basis state or a second basis state once a measurement is performed is provided. The method, comprising: applying a signal having a frequency through a transmission line coupled to the superconducting qubit characterized by two distinct, separate, and stable states of differing resonance frequencies each corresponding to the occupation of the first or second basis state prior to measurement; and measuring at least one of an output power or phase at an output port of the transmission line, wherein the measured output power or phase is indicative of whether the superconducting qubit is occupying the first basis state or the second basis state.
摘要翻译：提供了一旦确定包括超导量子位的量子系统是否在执行测量时占据第一基础状态或第二基础状态的方法。该方法包括：通过耦合到超导量子位的传输线施加具有频率的信号，其特征在于两个不同的，独立的和稳定的不同共振频率的状态，每个共振频率对应于在测量之前占用第一或第二基准状态; 并且测量所述传输线的输出端口处的输出功率或相位中的至少一个，其中所述测量的输出功率或相位指示所述超导量子位是否占据所述第一基准状态或所述第二基准状态。

8. 发明申请

US20090289638A1 MICROWAVE READOUT FOR FLUX-BIASED QUBITS 有权
标题翻译：微处理器为微处理器提供微波读取
公开(公告)号：US20090289638A1
公开(公告)日：2009-11-26
申请号：US12126015
申请日：2008-05-23
申请人： Matthew J. Farinelli , George A. Keefe , Shwetank Kumar , Matthias Steffen
发明人： Matthew J. Farinelli , George A. Keefe , Shwetank Kumar , Matthias Steffen
IPC分类号： G01R27/28 , H01L39/22
CPC分类号： G06N99/002 , B82Y10/00
摘要： A method for determining whether a quantum system comprising a superconducting qubit is occupying a first basis state or a second basis state once a measurement is performed is provided. The method, comprising: applying a signal having a frequency through a transmission line coupled to the superconducting qubit characterized by two distinct, separate, and stable states of differing resonance frequencies each corresponding to the occupation of the first or second basis state prior to measurement; and measuring at least one of an output power or phase at an output port of the transmission line, wherein the measured output power or phase is indicative of whether the superconducting qubit is occupying the first basis state or the second basis state.
摘要翻译：提供了一旦确定包括超导量子位的量子系统是否在执行测量时占据第一基础状态或第二基础状态的方法。该方法包括：通过耦合到超导量子位的传输线施加具有频率的信号，其特征在于两个不同的，独立的和稳定的不同共振频率的状态，每个共振频率对应于在测量之前占用第一或第二基准状态; 并且测量所述传输线的输出端口处的输出功率或相位中的至少一个，其中所述测量的输出功率或相位指示所述超导量子位是否占据所述第一基准状态或所述第二基准状态。

9. 发明授权

US07932514B2 Microwave readout for flux-biased qubits 有权
标题翻译：用于磁通偏置量子位的微波读数
公开(公告)号：US07932514B2
公开(公告)日：2011-04-26
申请号：US12126015
申请日：2008-05-23
申请人： Matthew J. Farinelli , George A. Keefe , Shwetank Kumar , Matthias Steffen
发明人： Matthew J. Farinelli , George A. Keefe , Shwetank Kumar , Matthias Steffen
IPC分类号： H01L39/22
CPC分类号： G06N99/002 , B82Y10/00
摘要： A method for determining whether a quantum system comprising a superconducting qubit is occupying a first basis state or a second basis state once a measurement is performed is provided. The method, comprising: applying a signal having a frequency through a transmission line coupled to the superconducting qubit characterized by two distinct, separate, and stable states of differing resonance frequencies each corresponding to the occupation of the first or second basis state prior to measurement; and measuring at least one of an output power or phase at an output port of the transmission line, wherein the measured output power or phase is indicative of whether the superconducting qubit is occupying the first basis state or the second basis state.
摘要翻译：提供了一旦确定包括超导量子位的量子系统是否在执行测量时占据第一基础状态或第二基础状态的方法。该方法包括：通过耦合到超导量子位的传输线施加具有频率的信号，其特征在于两个不同的，独立的和稳定的不同共振频率的状态，每个共振频率对应于在测量之前占用第一或第二基准状态; 并且测量所述传输线的输出端口处的输出功率或相位中的至少一个，其中所述测量的输出功率或相位指示所述超导量子位是否占据所述第一基准状态或所述第二基准状态。

10. 发明授权

US08954125B2 Low-loss superconducting devices 有权
标题翻译：低损耗超导器件
公开(公告)号：US08954125B2
公开(公告)日：2015-02-10
申请号：US13192597
申请日：2011-07-28
申请人： Antonio D. Corcoles Gonzalez , Jiansong Gao , Dustin A. Hite , George A. Keefe , David P. Pappas , Mary E. Rothwell , Matthias Steffen , Chang C. Tsuei , Michael R. Vissers , David S. Wisbey
发明人： Antonio D. Corcoles Gonzalez , Jiansong Gao , Dustin A. Hite , George A. Keefe , David P. Pappas , Mary E. Rothwell , Matthias Steffen , Chang C. Tsuei , Michael R. Vissers , David S. Wisbey
IPC分类号： H01L39/14 , H01L39/24 , H01B12/06 , H01P1/203 , H01P3/00 , G06N99/00 , H01L39/22 , H01P1/201 , H01P3/02
CPC分类号： H01L39/2416 , B82Y10/00 , G06N99/002 , H01L27/18 , H01L39/12 , H01L39/14 , H01L39/223 , H01P1/201 , H01P1/2013 , H01P3/003 , H01P3/026
摘要： Low-loss superconducting devices and methods for fabricating low loss superconducting devices. For example, superconducting devices, such as superconducting resonator devices, are formed with a (200)-oriented texture titanium nitride (TiN) layer to provide high Q, low loss resonator structures particularly suitable for application to radio-frequency (RF) and/or microwave superconducting resonators, such as coplanar waveguide superconducting resonators. In one aspect, a method of forming a superconducting device includes forming a silicon nitride (SiN) seed layer on a substrate, and forming a (200)-oriented texture titanium nitride (TiN) layer on the SiN seed layer.
摘要翻译：低损耗超导器件及制造低损耗超导器件的方法。例如，超导器件（例如超导谐振器器件）由（200）取向的纹理氮化钛（TiN）层形成，以提供特别适合于应用于射频（RF）和/ 或微波超导谐振器，例如共面波导超导谐振器。一方面，形成超导器件的方法包括在衬底上形成氮化硅（SiN）种子层，并在SiN籽晶层上形成（200）取向的织构氮化钛（TiN）层。

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