公开(公告)号：US20040170047A1

公开(公告)日：2004-09-02

申请号：US10791617

申请日：2004-03-02

Applicant: D-Wave Systems, Inc.

Inventor： Mohammad H.S. Amin ,  Geordie Rose ,  Alexandre Zagoskin ,  Jeremy P. Hilton

IPC: G11C011/22

CPC classification number: G06N99/002 ,  B82Y10/00 ,  Y10S977/933

Abstract: A control system for an array of qubits is disclosed. The control system according to the present invention provides currents and voltages to qubits in the array of qubits in order to perform functions on the qubit. The functions that the control system can perform include read out, initialization, and entanglement. The state of a qubit can be determined by grounding the qubit, applying a current across the qubit, measuring the resulting potential drop across the qubit, and interpreting the potential drop as a state of the qubit. A qubit can be initialized by grounding the qubit and applying a current across the qubit in a selected direction for a time sufficient that the quantum state of the qubit can relax into the selected state. In some embodiments, the qubit can be initialized by grounding the qubit and applying a current across the qubit in a selected direction and then ramping the current to zero in order that the state of the qubit relaxes into the selected state. The states of two qubits can be entangled by coupling the two qubits through a switch. In some embodiments, the switch that is capable of grounding the qubits can also be utilized for entangling selected qubits.

Abstract translation: 公开了一种用于量子位阵列的控制系统。 根据本发明的控制系统为了在量子位上执行功能向量子位阵列中的量子位提供电流和电压。 控制系统可以执行的功能包括读出，初始化和纠缠。 量子位的状态可以通过对量子位进行接地，在量子位上施加电流，测量量子位上产生的电位降，并将潜在的下降解释为量子位的状态来确定。 可以通过将量子位接地并在选定方向上跨越量子位的电流施加一个量子位，以使量子位的量子态可以放松到所选择的状态。 在一些实施例中，可以通过将量子位接地并在所选方向上跨越量子位施加电流，然后将电流斜坡化为零，以使量子位的状态放松到所选择的状态来初始化量子位。 两个量子位的状态可以通过一个开关耦合两个量子位来纠缠。 在一些实施例中，能够使量子位接地的开关也可用于纠缠所选择的量子位。

公开(公告)号：US20040167036A1

公开(公告)日：2004-08-26

申请号：US10791579

申请日：2004-03-02

Applicant: D-Wave Systems, Inc.

Inventor： Mohammad H.S. Amin ,  Geordie Rose ,  Alexandre Zagoskin ,  Jeremy P. Hilton

IPC: H01G002/00

CPC classification number: B82Y10/00 ,  G06N10/00 ,  Y10S977/933

Abstract: A control system for an array of qubits is disclosed. The control system according to the present invention provides currents and voltages to qubits in the array of qubits in order to perform functions on the qubit. The functions that the control system can perform include read out, initialization, and entanglement. The state of a qubit can be determined by grounding the qubit, applying a current across the qubit, measuring the resulting potential drop across the qubit, and interpreting the potential drop as a state of the qubit. A qubit can be initialized by grounding the qubit and applying a current across the qubit in a selected direction for a time sufficient that the quantum state of the qubit can relax into the selected state. In some embodiments, the qubit can be initialized by grounding the qubit and applying a current across the qubit in a selected direction and then ramping the current to zero in order that the state of the qubit relaxes into the selected state. The states of two qubits can be entangled by coupling the two qubits through a switch. In some embodiments, the switch that is capable of grounding the qubits can also be utilized for entangling selected qubits.

Abstract translation: 公开了一种用于量子位阵列的控制系统。 根据本发明的控制系统为了在量子位上执行功能向量子位阵列中的量子位提供电流和电压。 控制系统可以执行的功能包括读出，初始化和纠缠。 量子位的状态可以通过对量子位进行接地，在量子位上施加电流，测量量子位上产生的电位降，并将潜在的下降解释为量子位的状态来确定。 可以通过将量子位接地并在选定方向上跨越量子位的电流施加一个量子位，以使量子位的量子态可以放松到所选择的状态。 在一些实施例中，可以通过将量子位接地并在所选方向上跨越量子位施加电流，然后将电流斜坡化为零，以使量子位的状态放松到所选择的状态来初始化量子位。 两个量子位的状态可以通过一个开关耦合两个量子位来纠缠。 在一些实施例中，能够使量子位接地的开关也可用于纠缠所选择的量子位。

公开(公告)号：US20030098455A1

公开(公告)日：2003-05-29

申请号：US09823895

申请日：2001-03-31

Applicant: D-Wave Systems, Inc.

Inventor： Mohammad H.S. Amin ,  Timothy Duty ,  Alexander Omelyanchouk ,  Geordie Rose ,  Alexandre Zagoskin ,  Jeremy P. Hilton

IPC: H01L029/06

CPC classification number: G01R33/0354 ,  H01L39/225 ,  H01L39/2496 ,  Y10S505/874 ,  Y10S977/933

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20030027724A1

公开(公告)日：2003-02-06

申请号：US10032157

申请日：2001-12-21

Applicant: D-Wave Systems, Inc.

Inventor： Geordie Rose ,  Mohammad H. S. Amin ,  Timothy Lee Duty ,  Alexandre Zagoskin ,  Alexander N. Omelyanchouk ,  Jeremy P. Hilton

IPC: H01P001/00 ,  H01B001/00

CPC classification number: H01L39/228 ,  B82Y10/00 ,  G06N10/00 ,  H01L39/22 ,  H01L39/223 ,  H01L39/225

Abstract: In accordance with the present invention, a superconducting phase shift device is presented. The phase shift device can introduce a phase shift between the phases of the order parameters of the device's two terminals. The two terminals can be coupled through an anisotropic superconductor with angled sides, or through two anisotropic superconductors with misaligned phases, or through a ferromagnet in the junction area. The phase shift device can be used in superconducting quantum computing circuitry. A method of fabricating the phase shift device with a technology different from fabrication technology of conventional superconducting materials is described. A method for fabricating a phase shifter chip including an array of phase shift devices is described.

Abstract translation: 根据本发明，提出了一种超导相移装置。 相移装置可以在器件的两个端子的阶数参数的相位之间引入相移。 两个端子可以通过具有成角度的侧面的各向异性超导体，或者通过具有不对准相的两个各向异性超导体，或者通过连接区域中的铁磁体耦合。 相移装置可用于超导量子计算电路。 描述了使用与传统超导材料的制造技术不同的技术制造相移装置的方法。 描述了一种用于制造包括相移装置阵列的移相器芯片的方法。

公开(公告)号：US20030021518A1

公开(公告)日：2003-01-30

申请号：US10159326

申请日：2002-05-31

Applicant: D-Wave Systems, Inc.

Inventor： Anatoly Smirnov ,  Sergey Rashkeev ,  Alexandre Zagoskin ,  Jeremy P. Hilton

IPC: G02B006/26

CPC classification number: G02B6/29341 ,  B82Y10/00 ,  B82Y20/00 ,  G02B6/262 ,  G02F1/3132 ,  G02F2203/15 ,  G06N10/00

Abstract: An optical transformer having an optical microsphere is disclosed. Resonant electromagnetic radiation can be trapped in the microsphere and can be manipulated with externally applied electric and magnetic fields to manipulate polarization components of the excited energy. In some embodiments, the resonant modes of the microsphere can be excited from optical fibers. Transitions between modes of the electromagnetic radiation trapped in the microsphere can be accomplished, providing mechanisms for manipulating excited energy in the microsphere. In the single photon regime, the disclosed optical transformer can be used as a quantum bit for application of quantum algorithms.

Abstract translation: 公开了一种具有光学微球的光变压器。 谐振电磁辐射可以被捕获在微球中，并且可以用外部施加的电场和磁场来操纵以操纵激发能的偏振分量。 在一些实施方案中，可以从光纤激发微球的共振模式。 可以实现捕获在微球中的电磁辐射的模式之间的转变，提供用于操纵微球中的激发能的机制。 在单光子方案中，所公开的光变换器可以用作量子算法的量子位。