Alerta

MODULAR PACKAGE STRUCTURES WITH INTERPOSERS HAVING ALIGNMENT FEATURES

Absstract of: WO2025125129A1

A package structure comprises a first interposer, a second interposer, and a quantum chip. The first interposer comprises a first alignment feature. The second interposer comprises a second alignment feature. The quantum chip is bonded to the first interposer with an extended portion of the first quantum chip extending past a first edge of the first interposer. The first interposer and the second interposer are disposed with the first alignment feature engaging with the second alignment feature to cause alignment and coupling of one or more components on the extended portion of the first quantum chip with one or more components on the second interposer.

SOURCE OF ATOM AND/OR MOLECULE DELIVERY AND METHOD OF OPERATION AND PRODUCTION

Absstract of: EP4826741A1

Die Erfindung betrifft eine Quelle zur Abgabe von Atomen und/oder Molekülen, wobei die Quelle eine Vorratskammer hat, die zur Aufnahme einer Vorratsmasse von zu verdampfenden Atomen und/oder Molekülen eingerichtet ist, z.B. Alkali- und/oder Erdalkalimaterialien, weitere ausgewählte Lanthanoide, Übergangsmetalle oder Moleküle aus solchen Materialien, wobei die Quelle einen Verdampfer hat, wobei die Quelle dazu eingerichtet ist, Atome und/oder Moleküle aus der Vorratskammer mittels des Verdampfers in die Dampfphase zu überführen und die in die Dampfphase überführten Atome und/oder Moleküle in Form eines Strahlenbündels einer mit der Quelle verbundenen Vorrichtung, z.B. einer Quanteneffekt-Vorrichtung, zuzuführen. Die Erfindung betrifft außerdem ein Verfahren zum Betrieb einer solchen Quelle sowie ein Verfahren zu deren Herstellung.

SYSTEM AND METHOD FOR SWEEPING MAGNETIC FLUX FROM SUPERCONDUCTING INTEGRATED CIRCUITS

Absstract of: WO2025207167A2

A system and method for eliminating flux trapping in superconducting integrated circuits. An array of control current lines is provided, closely coupled thermally and magnetically with a superconducting integrated circuit. These control lines are configured to produce both heat and magnetic fields, with amplitudes and sequences of control currents designed to sweep magnetic flux away from the superconducting circuits at cryogenic operating temperatures. Verification may be obtained using SQUID magnetic sensors located close to the circuits. Similar methods may be applied to all superconducting integrated circuits which are sensitive to weak magnetic fields, including classical single-flux-quantum circuits, sensor arrays, and quantum computing circuits comprised of superconducting qubits. This system is scalable to superconducting circuits with up to millions of superconducting devices. The control currents may be configured to operate under automated feedback control.

QUANTUM COMPUTER SYSTEM AND METHOD FOR OPERATING A MOVABLE QUANTUM COMPUTER

Absstract of: EP4826492A2

Bereitgestellt wird ein Quantencomputersystem umfassend einen verlegbaren Quantencomputer und eine Energieversorgungseinrichtung zur zumindest teilweisen Versorgung des Quantencomputers mit elektrischer Energie. Das Quantencomputersystem ist dadurch gekennzeichnet, dass die Energieversorgungeinrichtung verlegbar ausgebildet ist, und dass die Energieversorgungseinrichtung eine erste Spannungsregelstufe und eine zweite Spannungsregelstufe aufweist und dazu eingerichtet ist, eine von einer Energiequelle bereitgestellte elektrische Energie durch eine mehrstufige Spannungsregelung mittels der ersten Spannungsregelstufe und der zweiten Spannungsstufe zur zumindest teilweisen Versorgung des Quantencomputers auf einen vorbestimmten Spannungswert zu regeln.

PHOTONIC ELEMENT FOR A QUANTUM INFORMATION PROCESSING DEVICE AND METHOD FOR PRODUCING SUCH

Absstract of: EP4826422A2

Some embodiments relate to a photonic element (10) for a quantum information processing device. The photonic element (10) comprises a high-purity silicon layer (20), wherein the high-purity silicon layer (20) contains integrated rare-earth element dopants (22), REE dopants, at a concentration of 10¹⁹ cm^-3 or less and wherein an optical transition between the lowest crystal field levels of the REE dopants (22) integrated in the high-purity silicon layer (20) exhibits a homogeneous linewidth of 1 MHz or less at a temperature of 4 K or less. Other embodiments relate to a method for producing a photonic element (10).

QUANTUM CONVOLUTIONAL NEURAL NETWORKS

Absstract of: EP4826600A2

One aspect of the present disclosure relates to a method, comprising: convolving a plurality of input qudits having a state by applying a first convolving layer of quantum channels to a first convolving subgroup of the plurality of input qudits; performing a pooling layer generalized measurement of the state of a subset of one or more input qudits within a first pooling subgroup of the plurality of input qudits, and applying a quantum channel to at least some of the input qudits in the first pooling subgroup on which the pooling layer generalized measurement has not been performed; applying a fully connected quantum channel to a selected subgroup of input qudits on which a pooling layer generalized measurement has not been performed; and performing a final generalized measurement on at least some of the input qudits on which a pooling layer generalized measurement has not been performed, wherein the outcome of the final generalized measurement is indicative of the state of the plurality of input qudits.

QUANTUM OBJECT CONFINEMENT APPARATUS

Absstract of: US20250200414A1

0000 A confinement apparatus includes a plurality of chips. Each chip of the plurality of chips are positioned at least partially on a first plane and adjacent to at least another one of the plurality of chips such that a distance between them is within 20 micrometer (μm) of each other. The plurality of chips are arranged such that at least one open area is formed on the plane and between at least two of the plurality of chips. The at least one open area extends a distance of at least 100 μm between a smallest distance between the at least two of the plurality of chips.

VACUUM FEEDTHROUGH AND VACUUM SYSTEM

Absstract of: GB2636580A

A vacuum feedthrough 10 providing an electrical connection from ambient pressure into a vacuum chamber 18 comprises: a first wall (12a, Fig. 1) at least partially connected to or part of the vacuum chamber; a second wall (12c) connected to the first wall by one or more sidewalls (12b), thereby defining an internal volume 12; a first electrical feedthrough 14 arranged in the first wall providing one or more electrical connections (24) through the first wall in a vacuum tight manner; a second electrical feedthrough 16 arranged in the second wall providing one or more electrical connections 26 through the second wall in a vacuum tight manner, the one or more electrical connections of the first electrical feedthrough being connected with respective electrical connections of the second electrical feedthrough; wherein the internal volume is a vacuum. The internal volume may be connected to a vacuum pump 34 or an inner surface of one or more of said walls may be covered with a NEG material.

OPTICAL ARRANGEMENT FOR A QUANTUM COMPUTER, QUANTUM COMPUTING ARRANGEMENT AND QUANTUM COMPUTER

Absstract of: WO2025125422A1

According to an embodiment, the optical arrangement (10) for a quantum computer comprises a first (1), a second (2) and a third (3) mirror for focusing radiation from a laser (4) onto an ion crystal (6) of several ions (6'), wherein the ions are lined up along a predefined line (7). The first and the second mirror are configured to transform, via reflection at the first and the second mirror, a beam from the laser having a circular beam profile into a beam with an elongated beam profile. The third mirror is configured to focus the beam with the elongated beam profile coming from the second mirror onto the ion crystal such that the elongated beam profile is maintained and such that, at the location of the ion crystal, the elongated beam profile is aligned with the predefined line.

METHOD FOR INTERACTING ELECTROMAGNETIC RADIATION WITH A MATTER PARTICLE

Absstract of: EP4571784A1

0001 The present disclosure pertains to matter-light interaction methods and systems using optical tweezers. There is provided a method for interacting electromagnetic radiation with a matter particle. The method comprises generating a region of first electromagnetic radiation, where the first electromagnetic radiation is centred about a first wavelength. The method further comprises trapping the matter particle in the region, where one or more resonant frequencies for ejecting the matter particle from the region are associated with the region and matter particle. The method further comprises directing second electromagnetic radiation to overlap the region, where the second electromagnetic radiation is centred about a second wavelength, and repeatedly varying the intensity of the second electromagnetic radiation at one or more of the said resonant frequencies.

LOWER-BOUNDING DISTANCE OF STABILIZER CHANNEL SEQUENCE

Absstract of: US20250190837A1

A computing system including one or more processing devices configured to receive a stabilizer channel sequence of three or more stabilizer channels and respective fault sets. The one or more processing devices compute a lower-bound channel distance of the stabilizer channel sequence at least in part by computing lower-bound channel distances of compositions of adjacent pairs of stabilizer channels. For a stabilizer channel and a plurality of partition timestep counts, computing the lower-bound channel distance further includes receiving an indication of whether there exists a partition of the fault set of that stabilizer channel that has that partition timestep count and for which the stabilizer channel is time-local. Computing the lower-bound channel distance further includes selecting a lowest value among the lower-bound channel distances of the compositions and each of the partition timestep counts that has a time-locality-satisfying partition. The one or more processing devices output the lower-bound channel distance.

IDENTIFYING SEVERE HOOK FAULTS OF STABILIZER CHANNEL

Absstract of: WO2025128312A1

A computing system including one or more processing devices configured to identify one or more severe hook faults in a stabilizer channel. Identifying the severe hook faults includes receiving a circuit channel check matrix, the columns of which indicate values of checks associated with elementary faults of the stabilizer channel. Identifying the severe hook faults further includes receiving a phenomenological channel check matrix as a sub-matrix of the circuit channel check matrix, receiving a logical effect matrix, and receiving a weight vector that indicates probability weights of the elementary faults. Based at least in part on the circuit channel check matrix, the logical effect matrix, the phenomenological channel check matrix, and the weight vector, identifying the severe hook faults further includes computing column indices of columns of the circuit channel check matrix that correspond to the severe hook faults. The processing devices output an indication of the severe hook faults.

SYSTEM AND METHOD FOR SOLVING A DIFFERENTIAL PROBLEM USING A QUANTUM COMPUTER

Absstract of: EP4826603A1

0001 Methods and systems are disclosed for solving a differential problem using a hybrid computer system. The differential problem defines a differential equation and one or more constraints, and solving the differential problem comprises finding a target function defining an approximate solution of the differential equation and obeying the constraints. The target function is represented by a vector of coefficients with respect to a given function basis. The method comprises receiving or determining information on one or more quantum circuits encoding a Hamiltonian representing the differential problem with respect to the basis functions; and determining the solution to the differential problem. The determining comprises encoding the quantum circuits using the quantum processor; and determining an eigenvector of the Hamiltonian with a minimal eigenvalue, preferably the eigenvalue being equal to zero, the eigenvector representing the vector of coefficients of the target function.

COMPUTER PROGRAM, QUANTUM COMPUTATION SUPPORT METHOD, AND INFORMATION PROCESSING APPARATUS

Absstract of: EP4826604A1

0001 An information processing apparatus causes a quantum computer to execute syndrome measurements of each of ancilla qubits. The information processing apparatus identifies, from a decode graph in which vertices corresponding to the ancilla qubits is connected by edges corresponding to data qubits, based on results of the syndrome measurements by the quantum computer, one or more first vertices corresponding to one or more first ancilla qubits whose states have been inverted. The information processing apparatus sets, in the decode graph, a boundary line that divides the decode graph into two regions. Then, the information processing apparatus calculates, based on the number and arrangement of the first vertices located between the boundary line and a logical boundary, probabilities that inversion of the state of the logical qubit has occurred and that inversion of the state of the logical qubit has not occurred.

QUANTUM DEVICE AND METHOD OF MANUFACTURING QUANTUM DEVICE

Absstract of: EP4826601A1

A quantum device includes a first substrate; a second substrate; and a third substrate. The first substrate includes a first opening; a second opening; and a first quantum circuit pattern which may include a first quantum bit. The second substrate includes a second quantum circuit pattern including a second quantum bit. The third substrate includes a third quantum circuit pattern including a third quantum bit. The second substrate is arranged so as to overlap at least a part of the first opening in plan view. The third substrate is arranged so as to overlap at least a part of the second opening in plan view. The first quantum circuit pattern and the second quantum circuit pattern are coupled. The first quantum circuit pattern and the third quantum circuit pattern are coupled.

METHOD FOR READING OUT THE STATES OF A PLURALITY OF QUBITS, IN PARTICULAR SUPERCONDUCTING QUBITS AND/OR SPIN QUBITS, READING DEVICE AND QUANTUM COMPUTER

Absstract of: EP4826602A2

0001 Die vorliegende Erfindung betrifft ein Verfahren zum Auslesen der Zustände mehrerer Qubits (Q1-Qn), insbesondere supraleitender Qubits und/oder Spin-Qubits , wobei den Qubits (Q1-Qn) für das Auslesen der Zustände das gleiche Probensignal (7) über eine gemeinsame Probenleitung (8) zugeführt wird, und wobei jedem Qubit (Q1-Qn) eine eigene, bevorzugt einen Antwort-Resonator (4) aufweisende Antwort-Schaltung (5) zugeordnet ist, und wobei in Reaktion auf das zugeführte Probensignal (7) über die jeweilige Antwort-Schaltung (5) ein Antwortsignal (20) mit einer Information über den Zustand des jeweiligen Qubits (Q1-Qn)ausgegeben wird, wobei das Antwortsignal (20) wenigstens eines Qubits (Q1-Qn) gegenüber dem Antwortsignal (20) wenigstens eines weiteren Qubits (Q1-Qn) verzögert wird. Darüber hinaus betrifft die Erfindung eine Auslesevorrichtung und einen Quantencomputer.

经由分束器激活的交叉克尔相互作用进行的双轨纠缠门

Absstract of: WO2025226349A2

Systems and methods for performing an entangling gate between a first dual-rail qubit and a second dual-rail qubit are described herein. The techniques described herein may leverage static non-linear interactions (e.g., static cross Kerr interactions) to perform entangling gates using coupled dual-rail qubits. The entangling gates may be performed by applying one or more drive waveforms to exchange encoded states of quantum oscillators in the dual-rail qubits to turn the non-linear interactions "on" and "off."

材料组合筛选方法、装置、电子设备及存储介质

Absstract of: CN122950006A

本申请涉及一种材料组合筛选方法、装置、电子设备及存储介质。该方法包括：构建至少包含胺基前驱体候选集合、羰基前驱体候选集合和连接方式候选集合的材料候选池；提取基于密度泛函理论计算和/或分子动力学计算得到的物理化学描述符；生成各组分的单体评分以及组分间的协同评分；生成至少包括选择约束和禁止配对约束的规则集合；构建包含单项评分项、配对协同项、选择约束惩罚项和禁止配对惩罚项的QUBO能量函数；将QUBO能量函数输入专用量子计算机求解，解码得到满足选择约束和禁止配对约束的候选实验组合。本申请解决了相关技术中因依赖人工经验筛选和逐一验证导致筛选效率较低、组分协同关系难以刻画的技术问题。

用于确定超导量子电路的物理参数的计算机实现的方法

Absstract of: EP4610873A1

0001 A computer-implemented method for determining physical parameters of a superconducting quantum circuit comprises the following operations: a) obtaining a superconducting quantum circuit blueprint comprising a representation of a physical arrangement of a superconducting metal and a dielectric substrate for forming a 2D or 3D superconducting quantum circuit and a frequency range in the microwave domain, b) tiling (500) said superconducting quantum circuit blueprint into elements having at least one port for receiving or emitting electromagnetic microwaves, each of said elements being defined as a closed region of said representation and being such that it showcases no self-resonance frequency in said frequency range, and such that each element comprises a port connected to a port of another element, the elements thereby defining a closed network and a corresponding network matrix based on the connections between the ports of respective elements, c) obtaining (510) scattering parameters for each of said elements, said scattering parameters defining the relationships between all output radiation and all input radiation for each port of each of said elements in the form of a scattering matrix in which the scattering parameters are expressed as a complex function of frequency that is holomorphic in a complex domain, d) determining (530) mode frequencies and corresponding mode amplitude vectors for a superconducting quantum circuit fabricated using the superconducting quant

一种基于投影角可控的拓扑量子比特结构及其量子计算实现方法

Absstract of: CN122947942A

本发明公开了一种基于投影角可控的拓扑量子比特结构及其量子计算实现方法。所述结构包括具有非零拓扑陈数的拓扑非平凡晶格平台、多个由投影角本征态定义的拓扑量子比特、投影角调制系统、量子门控制系统、纠缠控制系统和量子态读出系统。量子门保真度由拓扑相图公式:确定。本发明利用拓扑保护机制使量子比特对环境噪声不敏感，可在室温下以飞秒级速度运行，且天然可扩展，无需依赖实验上难以实现的非阿贝尔任意子编织操作。

一种量子噪声重构与误差缓解方法、系统及计算机装置

Absstract of: CN122947947A

本发明公开一种量子噪声重构与误差缓解方法、系统及计算机装置，方法包括获取量子噪声层析数据集，构建物理先验多头网络，网络包括共享特征提取模块、第一输出头和第二输出头，对第一输出头和第二输出头施加非负映射函数；将单量子比特局域噪声参数和两量子比特相关噪声参数通过矩阵乘积算子和稀疏Pauli‑Lindblad模型转换为张量网络形式的量子噪声信道；引入自适应权重构造混合损失函数，联合优化网络参数和自适应权重参数，得到目标噪声信道；基于目标噪声信道构建含噪线路逆映射，将含噪线路逆映射与理想量子门组合形成张量网络误差缓解模块；利用张量网络误差缓解模块对含噪线路输出结果进行经典后处理，得到误差缓解后的目标观测量。

一种心脏磁共振欠采样重建方法、系统、设备及存储介质

Absstract of: CN122949035A

本申请公开了一种心脏磁共振欠采样重建方法、系统、设备及存储介质，其方法包括：对获取多线圈心脏磁共振的原始k空间数据进行预处理，并依据预设欠采样规则得到欠采样k空间数据，将其输入至频域重建网络，得到初步重建k空间；对该空间执行逆傅里叶变换得到中间重建图像；将中间重建图像输入图像域重建网络，利用参数化量子线路对由中间重建图像获得的压缩特征进行量子编码、量子纠缠和量子测量，并由图像域重建网络预测图像残差；将图像残差与中间重建图像融合得到心脏磁共振重建图像。本申请提供一种心脏磁共振欠采样重建方法，以解决现有重建方法难以同时充分利用频域采样信息、图像域结构先验及复杂非线性特征关系的问题。

基于量子融合的神经网络模型蒸馏方法及装置

Absstract of: CN122947852A

本发明提供一种基于量子融合的神经网络模型蒸馏方法及装置，属于模型压缩技术领域，本发明的基于量子融合的神经网络模型蒸馏方法，通过构建类量子力学的数学计算框架，将传统神经网络单一维度的实数特征映射为复数域态，从而利用复数空间的丰富维度，有效保留了特征数据中极易丢失的微细结构信息与方向性差异，通过模拟量子纠缠通道机制，建立教师模型与学生模型之间的特征交互关系，为模型参数更新构建了具有全局优化视野和急剧响应敏感的损失函数，提升了学生模型的收敛速度，最终生成的轻量化模型在大幅度降低计算开销的同时，能够获得逼近大规模教学模型的预测精度和鲁棒性。

基于NTRU格基多项式环卷积电路的多项式处理方法和装置

Absstract of: CN122947946A

本申请涉及基于NTRU格基多项式环卷积电路的多项式处理方法和装置。包括：将本次多项式处理过程对应的配置参数发送至各运算单元；对第一多项式进行序列重排，并将重排后的第一多项式写入第一重排缓冲器，以及将第二多项式写入第二重排缓冲器；控制第一前向NTT运算单元对重排后的第一多项式进行数论变换处理生成第一频域系数序列；控制第二前向NTT运算单元对第二多项式进行数论变换处理，生成第二频域系数序列；控制频域并行模乘运算阵列对第一频域系数序列和第二频域系数序列进行模乘运算，得到频域乘积序列，并控制逆NTT蝶形运算阵列对频域乘积序列进行时域还原处理，生成多项式处理结果。本方法能够提高多项式处理效率。

一种磁光阱装置、原子设备以及量子计算机

Nº publicación: CN122950209A 20/10/2026

Applicant:

华为技术有限公司

Absstract of: CN122950209A

本申请实施例提供了一种磁光阱装置、原子设备以及量子计算机，涉及磁光阱技术领域，用于改善反亥姆霍兹线圈导致的体积较大、对光路产生遮挡以及残留磁场的问题。该磁光阱装置包括真空腔和光学系统；真空腔用于容置目标原子。光学系统用于产生分别在三维正交方向上对射的三对冷却光以及与三对冷却光同向传输的三对磁场光，冷却光为用于对目标原子进行多普勒冷却的激光束；三对冷却光在真空腔中的阱中心位置交叉，用于在阱中心位置形成光学黏团；磁场光为用于对目标原子产生等效磁场的激光束，三对磁场光在阱中心位置交叉，用于与三对冷却光配合将目标原子囚禁在光学黏团中。上述磁光阱装置可以应用于原子设备。