Alerta

VERFAHREN, VORRICHTUNG, QUANTENCOMPUTER, COMPUTERPROGRAMM UND COMPUTERLESBARES SPEICHERMEDIUM ZUR ERHÖHUNG EINER KOHÄRENZZEIT WÄHREND EINER QUANTENBERECHNUNG

Resumen de: DE102025108884A1

Ein Verfahren zur Erhöhung einer Kohärenzzeit während einer Quantenberechnung mit mindestens zwei Qubits ist angegeben, wobei das Verfahren umfasst:- Anlegen eines Quantengatters an die mindestens zwei Qubits,- Anlegen einer Signalsequenz an die mindestens zwei Qubits zumindest während einer Evolutionszeit des Quantengatters, so dass die Kohärenzzeit der mindestens zwei Qubits während der Quantenberechnung erhöht wird, wobei- die Signalsequenz mindestens zwei Signalsequenzblöcke umfasst,- jeder Signalsequenzblock eine Amplitude und eine Phase aufweist,- mindestens zwei Phasen von aufeinanderfolgenden Signalsequenzblöcken voneinander verschieden sind, und- die Amplitude vorbestimmt ist, um Rabi-Oszillationen für die mindestens zwei Qubits zu induzieren, wobei die Rabi-Oszillationen eine verstimmte Frequenz haben, die nah-resonant mit einer Fallenfrequenz ist.Ferner werden eine Vorrichtung, ein Quantencomputer, ein Computerprogramm und ein computerlesbares Speichermedium angegeben.

INCOHERENT APPROXIMATIONS OF LEAKAGE FOR EFFICIENT SIMULATIONS OF NOISY QUANTUM COMPUTATIONS

Resumen de: WO2025101869A1

Methods, systems and apparatus for determining an effect of uncontrolled quantum state transitions in a noisy quantum computation performed by a quantum computing device, where the noisy quantum computation comprises execution of a quantum circuit that is represented by one or more quantum channels. In one aspect, the uncontrolled quantum state transitions are approximated as incoherent uncontrolled quantum state transitions through application of a random phase approximation to the one or more quantum channels to obtain a modified quantum circuit that is represented by one or more incoherent quantum channels. The incoherent quantum channels preserve incoherence between computational subspaces and environmental subspaces for the one or more quantum channels. A simulation of the modified quantum circuit is then performed using a qubit simulation of the modified quantum circuit.

CIRCUIT COMPILATION METHOD FOR QUANTUM ERROR MITIGATION

Resumen de: EP4804087A1

0001 According to an aspect of an embodiment, operations include obtaining initial quantum circuit comprising entangling gates to generate first randomized quantum circuits by applying RC protocol on initial quantum circuit. The operation further includes obtaining first combined measurement results by executing first plurality of randomized quantum circuits on quantum computer. The operation includes generating plurality of random noise-magnified quantum circuits by applying ZNE protocol on initial quantum circuit. The operation further includes generating second randomized quantum circuits by applying RC protocol on each random noise-magnified quantum circuit and obtaining second combined measurement results by executing second plurality of randomized quantum circuits on quantum computer. Finally, operation includes generating final measurement results for initial quantum circuit by applying extrapolation method on first combined measurement results and second combined measurement results.

QUANTUM COMPUTING ARRANGEMENT, QUANTUM COMPUTING SYSTEM COMPRISING A PLURALITY OF SAID QUANTUM COMPUTING ARRANGEMENTS AND METHOD OF IMPLEMENTING A QUANTUM ERROR CORRECTION CODE ON SAID QUANTUM COMPUTING ARRANGEMENT OR SYSTEM

Resumen de: WO2025093134A1

The present invention is related to a quantum computing arrangement comprising a plurality of qubits, to a quantum computing system comprising a plurality of said quantum computing arrangements, to a method of implementing, on a quantum computing system, a quantum error correction code, said quantum computing system comprising the quantum computing arrangement, and to the use of a quantum computing system or a quantum computing arrangement for implementing a quantum error correction code.

FREQUENCY PLAN GENERATOR FOR MULTI-QUBIT PROCESSORS

Resumen de: US20250148335A1

0000 With a computerized frequency plan generator, for each node in a quantum lattice: determine a list of possible frequencies subject to at least one of nearest neighbor and next nearest neighbor collision constraints; and assign a highest possible frequency; apply a collision cleaning routine to the quantum lattice with the assigned frequencies until at least one of a condition where there are no remaining collisions and a condition where collision count ceases to improve; and apply a frequency perturbation routine to the collision-cleaned quantum lattice to move apart at least one of a high-risk nearest neighbor collision and a high risk next nearest neighbor collision.

OPTICAL BEAM POSITIONING AND CONTROL FOR QUANTUM COMPUTING

Resumen de: WO2025094047A1

Apparatus (20) for quantum computing includes an ion trap (24), which is configured to hold a first array of ions (40) in respective positions along an array axis (38). A radiation source (28) is configured to emit a second array of beams of coherent radiation, including first beams having respective first intensities (64) and having frequencies chosen to excite selected internal transitions of the ions and second beams having second intensities (66) at least ten times greater than any of the first intensities, and to switch respective locations of the first and second beams within the second array. Optics (82) focus the beams into the ion trap such that each beam in the second array is incident on a respective ion in the first array.

OPTIMIZATION TO MITIGATE FREQUENCY CROWDING IN MULTI-QUBIT PROCESSORS

Resumen de: WO2025093256A1

Define a plurality of qubit collision types and a plurality of constraints. For a group of qubits, use a computerized mixed-integer programming solver to, subject to the constraints, iteratively minimize collisions by minimizing a sum of products of weights multiplied by an amount of frequency collisions for given ones of the constraints of each one of the collision types. Output a frequency tuning plan for the group of qubits, based on the iterative minimization. Facilitate tuning physical qubits in accordance with the frequency tuning plan.

QUANTUM PROCESSING SYSTEMS

Resumen de: WO2025091073A1

Aspects of the present disclosure provide a quantum processing device comprising: a nuclear spin register comprising at least two nuclear spin qubits; at least one unpaired electron coupled to the nuclear spin register; and a control system configured to: control and/or readout the electron spin qubit; control and/or readout a nuclear spin qubit; and reduce errors arising from dipolar coupling between the nuclear spin qubits and/or between the electron spin and nuclear spins.

HIGH-FREQUENCY CASCADE READOUT

Resumen de: WO2025093253A1

A circuit for reading out the state of a qubit 100 having singlet and triplet spin states comprising: a double quantum dot 101 forming a qubit 100 comprising first and second quantum dots 105, 106. The circuit comprises a cascade quantum dot 102 capacitively coupled to the second quantum dot 106; a charge reservoir 103 tunnel coupled to the cascade quantum dot 102; and readout circuitry 104 coupled to the reservoir 103. When a charge carrier tunnels between the first and second quantum dots 105, 106, a charge carrier tunnels between the cascade quantum dot 102 and the charge reservoir 103. A frequency source connected to a gate electrode or the charge reservoir 103 is configured to apply an alternating potential 111 at a first frequency, h, thereby to cause cyclic tunnelling of a charge carrier only when the qubit is in the singlet state which can be detected by the resonator circuit 104.

DYNAMIC SIGNAL CONTROL SYSTEMS AND METHODS

Resumen de: WO2025096317A1

Various embodiments provide methods, apparatuses, systems, or computer program products for providing dynamic control of a signal. In an example embodiment, a system comprises a signal generator, a controller configured to control operation of the signal generator, a first signal path between the signal generator and an output connected to an electrode of an ion trap, and a selectively connectable second signal path between the signal generator and the output to bypass the low pass filter. The signal generator is configured to generate a signal comprising a first frequency component having a first range of frequencies and/or a second frequency component having a second range of frequencies higher than the first range of frequencies. The first signal path comprises a low pass filter to filter noise above the first range of frequencies. The second signal path comprises a bandpass filter to permit the second frequency component to pass from the signal generator to the output.

SYSTEMS AND METHODS FOR OPTIMIZING SPIN QUBIT READOUT

Resumen de: WO2025091074A1

Aspects of the present disclosure provide mechanisms to optimize qubit readout using known readout techniques. To do so, some aspects of the present disclosure control a tunneling rate between a qubit being measured and a charge sensor/reservoir. If PSB based readout is desirable for a quantum processing system, aspects of the present disclosure increase the asymmetry of the tunneling rates between two quantum dots tunnel-coupled to the SET/reservoir. If reservoir readout is desirable for a quantum processing system, aspects of the present disclosure adjust the tunneling rate between a quantum dot and the SET/reservoir for improved efficiency of the readout method.

MULTI-TERMINAL QUANTUM DEVICES AND SYSTEMS

Resumen de: WO2025093114A1

First and second device terminals of a multi-terminal quantum device (200) are coupled to first and second external measurement terminals respectively, whilst a device ground terminal is coupled to an external ground terminal. The device ground terminal is coupled to the external ground terminal via two parallel ground lines (101, 102). A first of these ground lines (101) includes a voltage measurement device (105), and a second ground line (102) comprises a voltage generator (106). A controller (103) receives as input a time-varying voltage measurement on the first line (101), and uses this measurement to generate a control signal to the voltage generator (106). The control signal causes the voltage generator (106) to generate a time-varying stabilization voltage on the second ground line (106) in order to mitigate or cancel any residual voltages on the device ground terminal.

MAGNETIC INTERFERENCE REDUCTION DEVICES AND SYSTEMS

Resumen de: US20250142796A1

0000 An interference reduction device is provided. The interference reduction device may include a magnetic shield positioned in proximity of a magnetic field. The magnetic shield is configured to reduce interference on the magnetic field along the direction of the magnetic field. The magnetic shield may include a cutout approximately parallel to the direction of the magnetic field, the cutout is configured to reduce a distortion caused by the magnetic shield on the magnetic field.

SYSTEMS AND METHODS FOR A VIRTUAL FACILITY AND A VIRTUAL FACILITY WORLD MODEL

Resumen de: US12288293B1

A virtual facility system may include a storage system, a data engine, an integration system, a virtual facility interface system, and a simulator engine. The storage system may store data including video of the real facility. The data engine may train a neural rendering model of the real facility based on the data providing a photorealistic three-dimensional representation of the real facility. The integration system may provide one or more interfaces facilitating communication with one or more control systems associated with the real facility including a management system providing historical or live inventory tracking data and facility operations process data characterizing of locations and tasks corresponding with inventory items or materials stored or handled in the real facility. The virtual facility interface system may provide access to information stored in a virtual facility. The simulator engine may simulate novel views generated based on the neural rendering model.

HARDWARE-EFFICIENT NEUTRAL ATOM QUANTUM COMPUTING METHOD AND DEVICE

Resumen de: EP4804088A2

The present disclosure relates to a device and a method for quantum computing using a plurality of neutral atoms in an array of optical traps, wherein a first internal state of the neutral atoms serves as qubit ground state |o>, and a second internal state serves as qubit excited state |1>. According to the present disclosure, a local single-qubit gate operation on a qubit may be performed comprising locally and selectively illuminating the qubit prepared in a superposition state |s> of qubit ground state |o> and qubit excited state |1> with a qubit addressing laser at a first qubit addressing laser frequency to cause a differential Stark shift for the qubit ground state |o> and the qubit excited state |1>, Further, a local two-qubit gate operation may be performed on a pair of qubits comprising locally and selectively illuminating the pair of qubits prepared in the qubit ground state |o> with the qubit addressing laser at a second qubit addressing laser frequency for coupling the pair of qubits to a Rydberg state |r> of the neutral atoms preferably via a third internal state c> of the neural atoms that can serve as an intermediate state of a two-photon transition from the qubit ground state |o> to the Rydberg state |r>.

DECODER FOR QUANTUM REPETITION CODE IN ONE DIMENSION

Resumen de: EP4804089A1

A method of correcting errors in a repetition code protected quantum memory, comprising an initial step of measuring parities between adjacent qubits along a one dimension presentation of the code, and locating apparent defects on a map of said one dimension presentation of the code on the basis of the measured parities, and a subsequent treatment step during which each site of the map is associated with a local automaton, the local automaton displacing apparent defects along the map on the basis of a simulated attractive interaction between apparent defects, said interaction being simulated with local memory and communicated from site to site, the automaton erasing apparent defects by pairs when pairs of apparent defects become adjacent on the map.

METHOD AND QUANTUM HARDWARE FOR QUANTUM ERROR CORRECTION

Resumen de: EP4804090A1

0001 A method for quantum error detection and/or correction according to a quantum error correction code that comprises at least one stabilizer operator acting on at least two data qubits (11), the method comprising: providing a quantum hardware (100, 100', 1000, 1000a, b, c, d, e) which comprises the at least two data qubits (11), a syndrome qubit (12a, b) and a multiqubit coupler (1) for the qubits (11, 12a, b); operating the qubits (11, 12a, b) and the multiqubit coupler (1) according to a syndrome measurement circuit associated with the at least one stabilizer operator to thereby retrieve an error syndrome of a quantum state of the data qubits (11) associated with the at least one stabilizer operator.

EXECUTING QUANTUM PROGRAMS ON MODULAR QUANTUM PROCESSING UNITS

Resumen de: WO2025096761A1

In a general aspect, quantum programs are executed on modular quantum processing units in a quantum computing system. In some implementations, a method includes receiving a quantum program including a sequence of quantum logic operations; decomposing the sequence of quantum logic operations into an equivalent sequence of quantum logic gates; and segmenting the sequence of quantum logic gates into an equivalent sequence of quantum circuit widgets. Each quantum circuit widget includes a subset of the quantum logic gates in the sequence and corresponds to a time slice of the quantum program. The quantum circuit widgets are compiled to produce a set of compiled quantum circuit widgets to be executed on multiple quantum processor modules of the quantum computing system.

光量子计算系统、光量子计算方法、装置和设备

Resumen de: CN122713457A

本发明提供了一种光量子计算系统、光量子计算方法、装置和设备，该系统包括：光子源，用于发射多个光子；制备单元，用于将多个光子制备成光子纠缠态，光子纠缠态中包括一个第一纠缠光子和多个第二纠缠光子；第一量子计算设备，用于对第一纠缠光子进行幺正操作和投影操作，生成第一纠缠光子的第一目标量子态；多个第二量子计算设备，用于对第二纠缠光子依次进行维度拓展、幺正操作、多次交换编程操作和投影操作，生成第二纠缠光子的第二目标量子态；单光子探测设备，用于对第一目标量子态和多个第二目标量子态分别进行测量计算，生成计算结果。采用本发明提供的光量子计算系统进行光量子计算时，量子级联计算成功率高，并且资源需求小，操作简便。

基于量子感知学习的小样本学习遥感图像分类方法

Resumen de: CN122714847A

本发明公开一种基于量子感知学习的小样本学习遥感图像分类方法，属于物理推算与跨模态检测技术领域。其实现包括：1）构建阶段注意力适配器、由量子正交解耦模块与量子正交融合模块串联组成的量子正交模块；2）构建量子感知学习适配器；3）利用训练数据集训练量子感知学习适配器；4）将遥感图像和文本输入至量子感知学习适配器中，经过阶段注意力适配器、量子正交模块等模块，生成量子驱动自适应权重ω，最终输出遥感图像分类结果。本发明能够有效解决类间特征混淆严重、跨类别噪声干扰明显等问题，大幅提升遥感图像的分类准确性。

一种量子计算芯片容错编码及运算优化方法

Resumen de: CN122713462A

本发明涉及量子计算芯片技术领域，具体为一种量子计算芯片容错编码及运算优化方法，包括以下步骤，对量子计算芯片中的物理量子比特阵列执行多轮错位错误症状测量，生成每个物理量子比特的错误倾向性谱张量；基于所述错误倾向性谱张量，构建含权动态稳定子生成器图，并为待保护的逻辑量子比特分配可变编码距；基于所述错误倾向性谱张量与所述可变编码距，将目标量子程序分解为逻辑门依赖图，并生成初始逻辑门排程；基于所述可变编码距与所述逻辑门依赖图，计算每个逻辑门的操作有效错误阈值。本发明具有资源利用率高、容错性能强、动态适应性好、运算保真度高的显著优势，适用于超导、离子阱、光量子多种物理体系的大规模量子计算芯片。

一种基于结构化搜索的量子电路优化方法、装置、设备和介质

Resumen de: CN122713461A

本发明公开了一种基于结构化搜索的量子电路优化方法、装置、设备和介质，将待优化量子电路转换为相位多项式的代数结构表示，构建待优化项集合E；基于E的代数结构识别高频方向向量及潜在的仿射子空间结构，并基于所述高频方向向量生成仿射子空间翻转操作作为候选操作集合；基于即时收益、支持密度、方向一致性、仿射闭包潜力及多步前瞻收益中至少一种的多维评分指标对候选操作进行评估，选择评分最高的目标操作执行翻转更新，得到元素数量减少的等价待优化项集合；迭代进行上述过程直至满足终止条件，最终恢复生成优化后的量子电路表示。本发明有效利用相位多项式的代数结构信息引导搜索，提高优化效率，避免局部最优，降低量子电路资源开销。

基于多值逻辑并行判决的哈希算法快速破解装置及方法

Resumen de: CN122717839A

本发明公开了一种基于多值逻辑并行判决的哈希算法快速破解装置及方法，属于信息安全与密码分析技术领域。本装置采用天枢架构，核心硬件包括6400位四值逻辑运算单元、2300位MSD无进位加法器及43亿条并行逻辑规则库；通过哈希长度自动识别、规则动态调度、分段运算、流水线级联及并行候选生成等步骤，实现50位～50000位及更大位数超宽范围哈希的快速逆向破解，可兼顾50/70/100位短位宽哈希的经济型运行，并支持后量子哈希算法扩展。本发明兼容性强、成本可控、破解速度快且可室温稳定运行，适用于密码审计、安全检测、数据溯源及抗量子攻击等场景。

一种分布式量子计算方法

Resumen de: CN122713458A

本发明提供了一种分布式量子计算方法。该方法包括：根据待处理的组合优化问题构建对应的优化模型；根据优化模型选择优化求解器；当优化对象数小于或等于计算比特数时，根据优化模型将当前的组合优化问题输入优化求解器中，得到全局最优值；否则，将当前的组合优化问题分割为至少两个子问题；根据优化模型将各个子问题分别输入优化求解器中，得到各个子问题的局部最优值；根据各个子问题的局部最优值，将各个子问题重组为当前的组合优化问题；根据当前的组合优化问题更新优化模型的参数，并将当前的组合优化问题中的需优化对象的数量作为优化对象数，返回判断优化对象数是否小于或等于计算比特数。应用本发明可以完成大规模组合优化问题的求解。

基于量子云码的数字隐形水印处理方法及系统、相关设备

Nº publicación: CN122714202A 08/09/2026

Solicitante:

福建中信网安信息科技有限公司闽都创新实验室

Resumen de: CN122714202A

本申请提供一种基于量子云码的数字隐形水印处理方法及系统、相关设备，方法包括：获取基于量子云码的初始赋码模型，以及包括预设载体图像和预设水印信息的预设训练样本；利用初始赋码模型中的编码器网络、打印扫描噪声模拟网络、解码器网络，分别得到目标水印图像、目标失真图像、解码水印信息；利用初始赋码模型中的判别器网络进行图像真伪判别处理，得到判别结果；基于判别结果对应的对抗损失、预设载体图像与目标水印图像之间的图像质量损失，以及预设水印信息与解码水印信息之间的水印提取损失，训练得到目标赋码模型，以用于对待处理文档页面对应的载体图像嵌入指定水印信息。本申请可更加准确地恢复水印信息，提高解码准确率。