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1. 发明申请

WO2019106418A1 SHORT DEPTH CIRCUITS AS QUANTUM CLASSIFIERS 审中-公开
公开(公告)号：WO2019106418A1
公开(公告)日：2019-06-06
申请号：PCT/IB2017/058266
申请日：2017-12-21
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , IBM (CHINA) INVESTMENT COMPANY LIMITED
发明人： GAMBETTA, Jay , HAVLICEK, Vojtech , TEMME, Paul, Kristan
IPC分类号： G06N99/00
摘要： A system comprises quantum hardware, a memory that stores computer-executable components and a processor that executes computer-executable components stored in the memory. The computer-executable components comprise a calibration component that calibrates quantum hardware to generate a short depth quantum circuit. The computer-executable components further comprise a cost function component that determines a cost function for the short depth quantum circuit based on an initial value for a parameter of a machine-learning classifier. The computer-executable components further comprise a training component that modifies the initial value for the parameter during training to a second value for the parameter based on the cost function for the short depth quantum circuit.

2. 发明申请

WO2019064054A1 INTERACTIVE USER INTERFACE FOR COMPOSING QUANTUM CIRCUITS 审中-公开
公开(公告)号：WO2019064054A1
公开(公告)日：2019-04-04
申请号：PCT/IB2017/057568
申请日：2017-12-01
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , IBM (CHINA) INVESTMENT COMPANY LIMITED
发明人： CHOW, Jerry , GAMBETTA, Jay , SERTAGE, Ismael, Faro , BISHOP, Lev, Samuel , CROSS, Andrew
IPC分类号： G06F17/50
CPC分类号： G06F17/5022 , G06F3/0482 , G06F8/33 , G06F8/34 , G06F9/453 , G06N10/00
摘要： Systems, methods, and computer-readable media are disclosed for composing quantum circuits and rendering graphical representations thereof within an interactive user interface. The user interface may be a quantum circuits composer interface into which a quantum circuit can be written via drag-and-drop user interactions with the interface that involve placing symbols representative of quantum operations (gates and measurements) on interactive elements (e.g., linear elements) representing qubits and/or classical bits, or more specifically, the state of qubits/classical bits over time. Quantum circuits created using the quantum circuits composer interface can be translated into a scripting language. In addition, user commands provided via a command line interface (CLI) can be translated into a corresponding quantum circuit and a graphical representation thereof can be dynamically generated. Modifications to the code commands can be dynamically reflected in the graphical representation.

3. 发明申请

WO2018162967A1 QUANTUM COMMUNICATION LINK ROBUST AGAINST PHOTON LOSS 审中-公开
公开(公告)号：WO2018162967A1
公开(公告)日：2018-09-13
申请号：PCT/IB2017/057630
申请日：2017-12-05
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , IBM (CHINA) INVESTMENT COMPANY LIMITED
发明人： BISHOP, Lev, Samuel , GAMBETTA, Jay , PAIK, Hanhee
IPC分类号： G06F1/00
摘要： A technique relates to communication of a quantum state. Polarization hardware is configured to receive a polarization encoded qubit and split the polarization encoded qubit into two qubits. Aconverter is coupled to the polarization hardware, and the converter is configured to convert the two qubits into a form suitable for a CNOT gate. The CNOT gate is configured to receive the two qubits such that a measurement result of a CNOT operation of the CNOT gate determines success of the communication of the quantum state.

4. 发明申请

WO2018033823A1 EFFICIENT REDUCTION OF RESOURCES FOR THE SIMULATION OF FERMIONIC HAMILTONIANS ON QUANTUM HARDWARE 审中-公开
标题翻译：量子硬件模拟费米子哈密顿的资源有效降低
公开(公告)号：WO2018033823A1
公开(公告)日：2018-02-22
申请号：PCT/IB2017/054758
申请日：2017-08-03
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , IBM (CHINA) INVESTMENT COMPANY LIMITED
发明人： TEMME, Paul, Kristan , BRAVYI, Sergey , GAMBETTA, Jay , MEZZACAPO, Antonio
IPC分类号： G06N99/00
摘要： A technique relates to reducing qubits required on a quantum computer. A Fermionic system is characterized in terms of a Hamiltonian. The Fermionic system includes Fermions and Fermionic modes with a total number of 2M Fermionic modes. The Hamiltonian has a parity symmetry encoded by spin up and spin down parity operators (1005). Fermionic modes are sorted such that the first half to 2M modes corresponds to spin up and the second half of 2M modes corresponds to spin down (1010). The Hamiltonian and the parity operators are transformed utilizing a Fermion to qubit mapping that transforms parity operators to a first single qubit Pauli operator on a qubit M and a second single qubit Pauli operator on a qubit 2M (1015). The qubit M having been operated on by the first single qubit Pauli operator and the qubit 2M having been operated on by the second single qubit Pauli operator are removed (1020).
摘要翻译：一种技术涉及减少量子计算机上所需的量子位。费米子体系的特征是哈密顿量。费米子系统包括费米子和费米子模式，总共有2M个费米子模式。哈密尔顿函数具有由自旋上升和下降平价运算符编码的奇偶对称性（1005）。费米子模式被分类，以使得前半部分到2M模式对应于旋转向上并且2M模式的后半部分对应于旋转向下（1010）。 Hamilton量和奇偶校验算子利用费米子进行变换以将奇偶校验算子变换为量子位M上的第一单个量子位Pauli算子和量子位2M（1015）上的第二单个量子位Pauli算子。已经由第一单量子位泡利算子操作的量子位M和已经由第二单量子位泡利算子操作的量子位2M被去除（1020）。

5. 发明申请

WO2017137855A1 INTEGRATED MICROWAVE-TO-OPTICAL SINGLE-PHOTON TRANSDUCER WITH STRAIN-INDUCED ELECTRO-OPTIC MATERIAL 审中-公开
标题翻译：集成式微波到光学单光子传感器，带有应变引起的电光材料
公开(公告)号：WO2017137855A1
公开(公告)日：2017-08-17
申请号：PCT/IB2017/050179
申请日：2017-01-13
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , IBM (CHINA) INVESTMENT COMPANY LIMITED
发明人： PAIK, Hanhee , FILIPP, Stefan , BISHOP, Lev, Samuel , GAMBETTA, Jay , ORCUTT, Jason, Scott
IPC分类号： H01S3/08
CPC分类号： G02F1/011 , G02B6/29341 , G02F1/0102 , G02F2201/17 , G02F2203/15 , G02F2203/50 , G06N99/002 , H01P7/086
摘要： Transducers and methods of making the same include a substrate having a cavity with a diameter that supports whispering gallery modes at a frequency of an input signal. A focusing structure in the cavity focuses the electric field of the input signal. A resonator directly under the focusing structure has a crystalline structure that generates an electro-optic effect when exposed to electrical fields. An electric field of the input signal modulates an output signal in the resonator via the electro-optic effect.
摘要翻译：传感器及其制造方法包括具有腔体的基板，该腔体的直径在输入信号的频率下支持回音廊模式。腔内的聚焦结构聚焦输入信号的电场。位于聚焦结构正下方的谐振器具有晶体结构，当暴露于电场时会产生电光效应。输入信号的电场通过电光效应调制谐振器中的输出信号。

6. 发明申请

WO2019106416A1 LOW LOSS ARCHITECTURE FOR SUPERCONDUCTING QUBIT CIRCUITS 审中-公开
公开(公告)号：WO2019106416A1
公开(公告)日：2019-06-06
申请号：PCT/IB2017/058214
申请日：2017-12-20
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , IBM (CHINA) INVESTMENT COMPANY LIMITED
发明人： GAMBETTA, Jay , CORCOLES-GONZALEZ, Antonio , SOLGUN, Firat , ROSENBLATT, Sami , BRINK, Markus
IPC分类号： H01L39/22
摘要： A technique relates to a structure. A first surface includes an inductive element of a resonator. A second surface includes a first portion of a capacitive element of the resonator and at least one qubit. A second portion of the capacitive element of the resonator is on the first surface.

7. 发明申请

WO2018002770A1 READ OUT OF QUANTUM STATES OF MICROWAVE FREQUENCY QUBITS WITH OPTICAL FREQUENCY PHOTONS 审中-公开
标题翻译：用光频光子读出微波频率的量子状态
公开(公告)号：WO2018002770A1
公开(公告)日：2018-01-04
申请号：PCT/IB2017/053659
申请日：2017-06-20
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , IBM (CHINA) INVESTMENT COMPANY LIMITED
发明人： PAIK, Hanhee , ORCUTT, Jason, Scott , BISHOP, Lev, Samuel , GAMBETTA, Jay , ROZEN, James
IPC分类号： H04B10/29 , H04B10/40
摘要： Techniques relate to reading a qubit coupled to a microwave resonator.A microwave signal at a microwave resonator frequency is input to the microwave resonator that couples to the qubit. A microwave readout signal from the microwave resonator is output to a microwave to optical converter. The microwave readout signal includes a qubit state of the qubit. The microwave to optical converter is configured to convert the microwave readout signal to an optical signal. In response to the optical signal being output by the microwave to optical converter, it is determined that the qubit is in a predefined qubit state. In response to no optical signal being output by the microwave to optical converter, it is determined that the qubit is not in the predefined qubit state.
摘要翻译：技术涉及读取耦合到微波谐振器的量子位。将处于微波谐振器频率的微波信号输入到耦合到量子位的微波谐振器。来自微波谐振器的微波读出信号被输出到微波到光学转换器。微波读出信号包括量子位的量子比特状态。微波到光学转换器被配置为将微波读出信号转换成光信号。响应于微波到光转换器输出的光信号，确定量子位处于预定量子位状态。响应于没有光信号由微波到光转换器输出，确定量子位未处于预定量子位状态。

8. 发明申请

WO2017001951A1 ARCHITECTURE FOR COUPLING QUANTUM BITS USING LOCALIZED RESONATORS 审中-公开
标题翻译：使用本地化的谐振器耦合量子位的结构
公开(公告)号：WO2017001951A1
公开(公告)日：2017-01-05
申请号：PCT/IB2016/053010
申请日：2016-05-23
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , IBM (CHINA) INVESTMENT COMPANY LIMITED
发明人： DIAL, Oliver , STEFFEN, Matthias , MCCLURE III, Douglas, Templeton , GAMBETTA, Jay
IPC分类号： H01P7/00
CPC分类号： H01L39/2493 , G06N99/002 , H01L39/025 , H01L39/14 , H01P1/205 , H01P7/00
摘要： A technique relates a superconducting microwave cavity. An array of posts has different heights in the cavity (100), and the array supports a localized microwave mode. The array of posts includes lower resonant frequency posts (20) and higher resonant frequency posts (10). The higher resonant frequency posts (10) are arranged around the lower resonant frequency posts (20). A first plate (25) is opposite a second plate (30) in the cavity (100). One end of the lower resonant frequency posts (20) is positioned on the second plate (30) so as to be electrically connected to the second plate (30). Another end of the lower resonant frequency posts (20) in the array is open so as not to form an electrical connection to the first plate (25). Qubits (40) are connected to the lower resonant frequency posts (20) in the array of posts, such that each of the qubits (40) is physically connected to one or two of the lower resonant frequency posts (20) in the array of posts.
摘要翻译：一种技术涉及超导微波腔。柱状阵列在空腔（100）中具有不同的高度，阵列支持局部微波模式。这些阵列包括较低的共振频率柱（20）和较高的共振频率柱（10）。较高谐振频率柱（10）围绕下共振频率柱（20）布置。第一板（25）与空腔（100）中的第二板（30）相对。下部共振频率柱（20）的一端位于第二板（30）上，以便与第二板（30）电连接。阵列中较低谐振频率柱（20）的另一端是开放的，以便不形成与第一板（25）的电连接。阵列（40）连接到柱阵列中的下共振频率柱（20），使得每个量子位（40）物理地连接到下列共振频率柱（20）中的一个或两个，阵列中的帖子。

9. 发明申请

WO2016199029A1 MODULAR ARRAY OF VERTICALLY INTEGRATED SUPERCONDUCTING QUBIT DEVICES FOR SCALABLE QUANTUM COMPUTING 审中-公开
标题翻译：用于可量程计算的垂直集成超级QUBIT器件的模块化阵列
公开(公告)号：WO2016199029A1
公开(公告)日：2016-12-15
申请号：PCT/IB2016/053348
申请日：2016-06-08
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , IBM (CHINA) INVESTMENT COMPANY LIMITED
发明人： CHOW, Jerry, Moy , GAMBETTA, Jay , ROTHWELL, Mary, Beth , ROZEN, James
IPC分类号： G06N99/00 , H01L27/18 , H01L39/22
CPC分类号： G06N99/002 , H01L25/04 , H01L27/18 , H01L39/045 , H01L39/223 , H01L39/2493
摘要： A technique relates to an assembly (500) for a quantum computing device. A quantum bus plane (100) includes a first set of recesses (201). A readout plane (102) includes a second set of recesses (301). A block (502) is positioned to hold the readout plane (102) opposite the quantum bus plane (100), such that the first set of recesses (201) opposes the second set of recesses (301). A plurality of qubit chips (101) are included where each has a first end positioned in the first set of recesses (201) and has a second end positioned in the second set of recesses (301).
摘要翻译：技术涉及一种用于量子计算设备的组件（500）。量子总线平面（100）包括第一组凹槽（201）。读出平面（102）包括第二组凹部（301）。定位块（502）以保持与量子总线平面（100）相对的读出平面（102），使得第一组凹部（201）与第二组凹部（301）相对。包括多个量子位芯片（101），其中每个都具有位于第一组凹部（201）中的第一端，并且具有位于第二组凹部（301）中的第二端。

10. 发明申请

WO2019106417A1 SYSTEM AND METHOD FOR ROUTING SIGNALS IN COMPLEX QUANTUM SYSTEMS 审中-公开
公开(公告)号：WO2019106417A1
公开(公告)日：2019-06-06
申请号：PCT/IB2017/058250
申请日：2017-12-21
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , IBM (CHINA) INVESTMENT COMPANY LIMITED
发明人： SANDBERG, Martin , MCKAY, David , GUMANN, Patryk , PAIK, Hanhee , GAMBETTA, Jay
IPC分类号： G06N99/00 , H01L23/485
摘要： Embodiments of the present invention disclose a computer system having a plurality of quantum circuits arranged in a two-dimensional plane-like structure, the quantum circuits comprising qubits and busses (i.e., qubit-qubit interconnects), and a method of formation therefor. A quantum computer system comprises a plurality of quantum circuits arranged in a two-dimensional pattern. At least one interior quantum circuit, not along the perimeter of the two-dimensional plane of the plurality of quantum circuits, contains a bottom chip, a device layer, a top chip, and a routing layer. A signal wire connects the device layer to the routing layer, wherein the signal wire breaks the two dimensional plane, for example, the signal wire extends into a different plane.

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