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公开(公告)号：US08008942B2
公开(公告)日：2011-08-30
申请号：US12397999
申请日：2009-03-04
申请人： Alexander Maassen van den Brink , Peter Love , Mohammad H. S. Amin , Geordie Rose , David Grant , Miles F. H. Steininger , Paul Bunyk , Andrew J. Berkley
发明人： Alexander Maassen van den Brink , Peter Love , Mohammad H. S. Amin , Geordie Rose , David Grant , Miles F. H. Steininger , Paul Bunyk , Andrew J. Berkley
IPC分类号： H03K19/195
摘要： Analog processors for solving various computational problems are provided. Such analog processors comprise a plurality of quantum devices, arranged in a lattice, together with a plurality of coupling devices. The analog processors further comprise bias control systems each configured to apply a local effective bias on a corresponding quantum device. A set of coupling devices in the plurality of coupling devices is configured to couple nearest-neighbor quantum devices in the lattice. Another set of coupling devices is configured to couple next-nearest neighbor quantum devices. The analog processors further comprise a plurality of coupling control systems each configured to tune the coupling value of a corresponding coupling device in the plurality of coupling devices to a coupling. Such quantum processors further comprise a set of readout devices each configured to measure the information from a corresponding quantum device in the plurality of quantum devices.
摘要翻译： 提供了用于解决各种计算问题的模拟处理器。 这种模拟处理器包括与多个耦合装置一起布置成格子的多个量子器件。 模拟处理器进一步包括偏置控制系统，每个偏置控制系统被配置为在对应的量子器件上施加局部有效偏置。 多个耦合装置中的一组耦合装置被配置为耦合格子中的最近邻量子器件。 另一组耦合器件配置成耦合下一个最近邻量子器件。 模拟处理器还包括多个耦合控制系统，每个耦合控制系统被配置为将多个耦合装置中的对应耦合装置的耦合值调谐到耦合。 这种量子处理器还包括一组读出装置，每个读出装置被配置为从多个量子器件中的对应的量子器件测量信息。
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公开(公告)号：US08283943B2
公开(公告)日：2012-10-09
申请号：US13210169
申请日：2011-08-15
申请人： Alexander Maassen van den Brink , Peter Love , Mohammad H. S. Amin , Geordie Rose , David Grant , Miles F. H. Steininger , Paul Bunyk , Andrew J. Berkley
发明人： Alexander Maassen van den Brink , Peter Love , Mohammad H. S. Amin , Geordie Rose , David Grant , Miles F. H. Steininger , Paul Bunyk , Andrew J. Berkley
IPC分类号： H03K19/195
摘要： Analog processors for solving various computational problems are provided. Such analog processors comprise a plurality of quantum devices, arranged in a lattice, together with a plurality of coupling devices. The analog processors further comprise bias control systems each configured to apply a local effective bias on a corresponding quantum device. A set of coupling devices in the plurality of coupling devices is configured to couple nearest-neighbor quantum devices in the lattice. Another set of coupling devices is configured to couple next-nearest neighbor quantum devices. The analog processors further comprise a plurality of coupling control systems each configured to tune the coupling value of a corresponding coupling device in the plurality of coupling devices to a coupling. Such quantum processors further comprise a set of readout devices each configured to measure the information from a corresponding quantum device in the plurality of quantum devices.
摘要翻译： 提供了用于解决各种计算问题的模拟处理器。 这种模拟处理器包括与多个耦合装置一起布置成格子的多个量子器件。 模拟处理器进一步包括偏置控制系统，每个偏置控制系统被配置为在对应的量子器件上施加局部有效偏置。 多个耦合装置中的一组耦合装置被配置为耦合格子中的最近邻量子器件。 另一组耦合器件配置成耦合下一个最近邻量子器件。 模拟处理器还包括多个耦合控制系统，每个耦合控制系统被配置为将多个耦合装置中的对应耦合装置的耦合值调谐到耦合。 这种量子处理器还包括一组读出装置，每个读出装置被配置为从多个量子器件中的对应的量子器件测量信息。
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公开(公告)号：US06905887B2
公开(公告)日：2005-06-14
申请号：US10192623
申请日：2002-07-09
申请人： Mohammad H. S. Amin , Timothy Duty , Alexander Omelyanchouk , Geordie Rose , Alexandre Zagoskin , Jeremy P. Hilton
发明人： Mohammad H. S. Amin , Timothy Duty , Alexander Omelyanchouk , Geordie Rose , Alexandre Zagoskin , Jeremy P. Hilton
IPC分类号： G01R33/035 , H01L39/22 , H01L39/24 , H01L21/00
CPC分类号： G01R33/0354 , H01L39/225 , H01L39/2496 , Y10S505/874 , Y10S977/933
摘要： A solid state dc-SQUID includes a superconducting loop containing a plurality of Josephson junctions, wherein an intrinsic phase shift is accumulated through the loop. In an embodiment of the invention, the current-phase response of the dc-SQUID sits in a linear regime where directional sensitivity to flux through the loop occurs. Changes in the flux passing through the superconducting loop stimulates current which can be quantified, thus providing a means of measuring the magnetic field. Given the linear and directional response regime of the embodied device, an inherent current to phase sensitivity is achieved that would otherwise be unobtainable in common dc-SQUID devices without extrinsic intervention.
摘要翻译： 固态dc-SQUID包括包含多个约瑟夫逊结的超导回路，其中本征相移通过回路积累。 在本发明的一个实施例中，dc-SQUID的电流相位响应处于线性状态，其中发生通过环路的通量的方向灵敏度。 通过超导环路的通量的变化会刺激可量化的电流，从而提供测量磁场的方法。 给定所体现的装置的线性和方向响应方案，实现固有的电流到相位灵敏度，否则在相同的dc-SQUID装置中将无法获得，而不需要外部干预。
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公开(公告)号：US06784451B2
公开(公告)日：2004-08-31
申请号：US10321941
申请日：2002-12-17
IPC分类号： H01L3902
CPC分类号： G06N99/002 , B82Y10/00 , G01R33/0358 , H01L27/18 , Y10S977/933
摘要： In one embodiment, a two-junction phase qubit includes a superconducting loop and two Josephson junctions separated by a mesoscopic island on one side and a bulk loop on another side. The material forming the superconducting loop is a superconducting material with an order parameter that violates time reversal symmetry. In one embodiment, a two-junction phase qubit includes a loop of superconducting material, the loop having a bulk portion and a mesoscopic island portion. The loop further includes a relatively small gap located in the bulk portion. The loop further includes a first Josephson junction and a second Josephson junction separating the bulk portion from the mesoscopic island portion. The superconducting material on at least one side of the first and second Josephson junctions has an order parameter having a non-zero angular momentum in its pairing symmetry. In one embodiment, a qubit includes a superconducting loop having a bulk loop portion and a mesoscopic island portion. The superconducting loop further includes first and second Josephson junctions separating the bulk loop portion from the mesoscopic island portion. The superconducting loop further includes a third Josephson junction in the bulk loop portion. In one embodiment, the third Josephson junction has a Josephson energy relatively larger than a Josephson energy of the first and second Josephson junctions.
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公开(公告)号：US06627916B2
公开(公告)日：2003-09-30
申请号：US09823895
申请日：2001-03-31
申请人： Mohammad H. S. Amin , Timothy Duty , Alexander Omelyanchouk , Geordie Rose , Alexandre Zagoskin , Jeremy P. Hilton
发明人： Mohammad H. S. Amin , Timothy Duty , Alexander Omelyanchouk , Geordie Rose , Alexandre Zagoskin , Jeremy P. Hilton
IPC分类号： H01L3922
CPC分类号： G01R33/0354 , H01L39/225 , H01L39/2496 , Y10S505/874 , Y10S977/933
摘要： A solid state dc-SQUID includes a superconducting loop containing a plurality of Josephson junctions, wherein an intrinsic phase shift is accumulated through the loop. In an embodiment of the invention, the current-phase response of the dc-SQUID sits in a linear regime where directional sensitivity to flux through the loop occurs. Changes in the flux passing through the superconducting loop stimulates current which can be quantified, thus providing a means of measuring the magnetic field. Given the linear and directional response regime of the embodied device, an inherent current to phase sensitivity is achieved that would otherwise be unobtainable in common dc-SQUID devices without extrinsic intervention.
摘要翻译： 固态dc-SQUID包括包含多个约瑟夫逊结的超导回路，其中本征相移通过回路积累。 在本发明的一个实施例中，dc-SQUID的电流相位响应处于线性状态，其中发生通过环路的通量的方向灵敏度。 通过超导环路的通量的变化会刺激可量化的电流，从而提供测量磁场的方法。 给定所体现的装置的线性和方向响应方案，实现固有的电流到相位灵敏度，否则在相同的dc-SQUID装置中将无法获得，而不需要外部干预。
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6.发明授权Superconducting dot/anti-dot flux qubit based on time-reversal symmetry breaking effects 有权基于时间反转对称破坏效应的超导点/反点通量量子位公开(公告)号：US06537847B2
公开(公告)日：2003-03-25
申请号：US10058181
申请日：2002-01-25
IPC分类号： H01L2100
CPC分类号： G06N99/002 , B82Y10/00 , H01L39/22 , Y10S977/933
摘要： A method is described for forming a solid state qubit. The method includes forming a dot or an anti-dot. The dot or anti-dot can be formed on a substrate and is delimited by an interface that defines a closed area. The dot or anti-dot includes a superconductive material with Cooper pairs that are in a state of non-zero orbital angular momentum on at least one side of the interface. The method includes removing superconducting material on the inner side of the interface or removing the outer side of the interface by etching. The method can further include forming a dot or an anti-dot by damaging the superconducting material such that the superconductive material becomes non-superconductive in predefined areas. The damaging of superconducting material can be performed by irradiation with particles, such as alpha particles or neutrons. The superconductive material can also be formed by doping a non-superconductive material.
摘要翻译： 描述了形成固态量子位的方法。 该方法包括形成点或反点。 点或反点可以形成在基底上，并且由限定封闭区域的界面限定。 点或反点包括具有Cooper对的超导材料，其在界面的至少一侧处于非零轨道角动量的状态。 该方法包括在界面的内侧除去超导材料或通过蚀刻除去界面的外侧。 该方法还可以包括通过损坏超导材料形成点或反点，使得超导材料在预定区域中变得不超导。 超导材料的破坏可以通过用诸如α粒子或中子的粒子照射进行。 超导材料也可以通过掺杂非超导材料来形成。
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公开(公告)号：US08686751B2
公开(公告)日：2014-04-01
申请号：US13608836
申请日：2012-09-10
申请人： Alexander Maassen van den Brink , Peter Love , Mohammad H. S. Amin , Geordie Rose , David Grant , Miles F. H. Steininger , Paul Bunyk , Andrew J. Berkley
发明人： Alexander Maassen van den Brink , Peter Love , Mohammad H. S. Amin , Geordie Rose , David Grant , Miles F. H. Steininger , Paul Bunyk , Andrew J. Berkley
IPC分类号： H03K19/195
摘要： Analog processors for solving various computational problems are provided. Such analog processors comprise a plurality of quantum devices, arranged in a lattice, together with a plurality of coupling devices. The analog processors further comprise bias control systems each configured to apply a local effective bias on a corresponding quantum device. A set of coupling devices in the plurality of coupling devices is configured to couple nearest-neighbor quantum devices in the lattice. Another set of coupling devices is configured to couple next-nearest neighbor quantum devices. The analog processors further comprise a plurality of coupling control systems each configured to tune the coupling value of a corresponding coupling device in the plurality of coupling devices to a coupling. Such quantum processors further comprise a set of readout devices each configured to measure the information from a corresponding quantum device in the plurality of quantum devices.
摘要翻译： 提供了用于解决各种计算问题的模拟处理器。 这种模拟处理器包括与多个耦合装置一起布置成格子的多个量子器件。 模拟处理器进一步包括偏置控制系统，每个偏置控制系统被配置为在对应的量子器件上施加局部有效偏 多个耦合装置中的一组耦合装置被配置为耦合格子中的最近邻量子器件。 另一组耦合器件配置成耦合下一个最近邻量子器件。 模拟处理器还包括多个耦合控制系统，每个耦合控制系统被配置为将多个耦合装置中的对应耦合装置的耦合值调谐到耦合。 这种量子处理器还包括一组读出装置，每个读出装置被配置为从多个量子器件中的对应的量子器件测量信息。
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公开(公告)号：US06943368B2
公开(公告)日：2005-09-13
申请号：US10719925
申请日：2003-11-20
申请人： Mohammad H. S. Amin , Anatoly Yu. Smirnov , Alexander Maassen van den Brink , Jeremy P. Hilton , Miles F. H. Steininger
发明人： Mohammad H. S. Amin , Anatoly Yu. Smirnov , Alexander Maassen van den Brink , Jeremy P. Hilton , Miles F. H. Steininger
CPC分类号： G06N99/002 , B82Y10/00 , Y10S977/933
摘要： A method for quantum computing with a quantum system comprising a first energy level, a second energy level, and a third energy level. The first energy level and said second energy level are capable of being degenerate with respect to each other. In the method a signal is applied to the quantum system. The signal has an alternating amplitude at an associated frequency such that (i) the frequency of the signal correlates with an energy level separation between the first energy level and the third energy level or (ii) the frequency of the signal correlates with an energy level separation between the second energy level and the third energy level. The signal induces an oscillation in the state of the quantum system between the first energy level and the second energy level.
摘要翻译： 一种用于量子计算的方法，所述量子系统包括第一能量级，第二能级和第三能级。 第一能量级和所述第二能级能够相对于彼此退化。 在该方法中，信号被施加到量子系统。 该信号具有相关频率的交变振幅，使得（i）信号的频率与第一能级和第三能级之间的能级间隔相关，或者（ii）信号的频率与能级相关 第二能级与第三级之间的分离。 信号在第一能级和第二能级之间引起量子系统状态的振荡。
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公开(公告)号：US07533068B2
公开(公告)日：2009-05-12
申请号：US11317838
申请日：2005-12-22
申请人： Alec Maassen van den Brink , Peter Love , Mohammad H. S. Amin , Geordie Rose , David Grant , Miles F. H. Steininger , Paul Bunyk , Andrew J. Berkley
发明人： Alec Maassen van den Brink , Peter Love , Mohammad H. S. Amin , Geordie Rose , David Grant , Miles F. H. Steininger , Paul Bunyk , Andrew J. Berkley
摘要： Analog processors for solving various computational problems are provided. Such analog processors comprise a plurality of quantum devices, arranged in a lattice, together with a plurality of coupling devices. The analog processors further comprise bias control systems each configured to apply a local effective bias on a corresponding quantum device. A set of coupling devices in the plurality of coupling devices is configured to couple nearest-neighbor quantum devices in the lattice. Another set of coupling devices is configured to couple next-nearest neighbor quantum devices. The analog processors further comprise a plurality of coupling control systems each configured to tune the coupling value of a corresponding coupling device in the plurality of coupling devices to a coupling. Such quantum processors further comprise a set of readout devices each configured to measure the information from a corresponding quantum device in the plurality of quantum devices.
摘要翻译： 提供了用于解决各种计算问题的模拟处理器。 这种模拟处理器包括与多个耦合装置一起布置成格子的多个量子器件。 模拟处理器进一步包括偏置控制系统，每个偏置控制系统被配置为在对应的量子器件上施加局部有效偏 多个耦合装置中的一组耦合装置被配置为耦合格子中的最近邻量子器件。 另一组耦合器件配置成耦合下一个最近邻量子器件。 模拟处理器还包括多个耦合控制系统，每个耦合控制系统被配置为将多个耦合装置中的对应耦合装置的耦合值调谐到耦合。 这种量子处理器还包括一组读出装置，每个读出装置被配置为从多个量子器件中的对应的量子器件测量信息。
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公开(公告)号：US07418283B2
公开(公告)日：2008-08-26
申请号：US11092953
申请日：2005-03-28
申请人： Mohammad H. S. Amin
发明人： Mohammad H. S. Amin
IPC分类号： G02L39/00
CPC分类号： G06N99/002 , B82Y10/00
摘要： A method for quantum computing using a quantum system comprising a plurality of qubits is provided. The system can be in any one of at least two configurations at any given time including one characterized by an initialization Hamiltonian HO and one characterized by a problem Hamiltonian HP. The problem Hamiltonian HP has a ground state. Each respective first qubit in the qubits is arranged with respect to a respective second qubit in the qubits such that they define a predetermined coupling strength. The predetermined coupling strengths between the qubits in the plurality of qubits collectively define a computational problem to be solved. In the method, the system is initialized to HO and is then adiabatically changed until the system is described by the ground state of the problem Hamiltonian HP. Then the state of the system is read out by probing an observable of the σX Pauli matrix operator.
摘要翻译： 提供了使用包括多个量子位的量子系统的量子计算的方法。 该系统可以在任何给定时间处于至少两个配置中的任何一个中，其中一个特征在于初始化哈密尔顿算子H＆lt;＆gt;和以问题哈密顿H（H）为特征的特征。 问题哈密顿H＆lt; P＆gt;具有基态。 量子位中的每个相应的第一量子位相对于量子位中的相应的第二量子位被布置，使得它们限定预定的耦合强度。 多个量子位中的量子位之间的预定耦合强度共同定义了待解决的计算问题。 在该方法中，系统被初始化为H O O，并且然后被绝热地改变，直到系统被问题的基本状态描述为哈密尔顿H P。 然后，通过探测一个可见的西格玛（Paul）矩阵运算符来读出该系统的状态。
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