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Quantenschaltkreis

Resumen de: DE102025133101A1

Quantenschaltkreis zur Anwendung eines Anregungsoperators auf ein fermionisches System zur Erzeugung eines Zielzustands mit einer Vielzahl von Qubits, wobei das fermionische System mindestens ein Ausgangsorbital und mindestens ein Zielorbital aufweist, wobei eine Anregung von dem Ausgangsorbital in das Zielorbital durch den Anregungsoperator erfolgen soll, wobei ein Ausgangs-Qubit p das Ausgangsorbital und Ziel-Qubit q das Zielorbital repräsentiert, mindestens ein erstes globales Gatter und mindestens ein zweites globales Gatter, welche jeweils gemeinsam zumindest auf das Ausgangs-Qubit p und das Ziel-Qubit q wirken, eine erste z-Rotation und eine zweite z-Rotation, die zwischen dem ersten globalen Gatter und dem zweiten globalen Gatter angeordnet sind und parallel jeweils auf das Ausgangs-Qubit p und das Ziel-Qubit q wirken, wobei durch das erste globale Gatter, das zweite globale Gatter, die erste z-Rotation und die zweite z-Rotation mindestens zwei Pauli-Rotationen des Anregungsoperators parallelisiert ausgeführt werden zur Erzeugung des Zielzustands.

EFFICIENT COMPUTATION OF FAST WALSH-HADAMARD TRANSFORMS ON A HARDWARE INFERENCE ACCELERATOR

Resumen de: WO2026212627A1

Methods and systems, including computer-readable media, are described for efficient computation of Fast Walsh-Hadamard Transforms on an integrated circuit. The circuit receives an input matrix with floating-point (FP) values for processing at a neural network layer. A Hadamard multiplication output is computed from the FP values using a Hadamard identity matrix. For example, the circuit obtains an input vector of the input matrix. At a first iteration, a first output is computed from vector-matrix operations performed on values of the input vector and a first sub-matrix derived from the Hadamard identity matrix. At a second iteration, a second output is computed from vector-matrix operations performed on the first output and a second sub-matrix derived from the Hadamard identity matrix. A result is computed from a divide-by-2 operation performed on the second output computed at the second iteration. The Hadamard multiplication output is computed using the result of the divide-by-2 operation.

INFORMATION PROCESSING METHOD AND INFORMATION PROCESSING APPARATUS

Resumen de: US20260311014A1

An information processing apparatus instructs a quantum computer to execute a quantum circuit in which, among first qubits having a predetermined attribute included in a plurality of qubits, a predetermined number of first qubits are in a state |1 before a gate operation specified by a first subcircuit. The information processing apparatus acquires, from the quantum computer, a measurement result indicating the state of each qubit after gate operations specified by the quantum circuit. The information processing apparatus calculates, based on the states of the first qubits indicated by the measurement result, the number of first qubits that are in the state |1 after the gate operation specified by the first subcircuit. Then, the information processing apparatus discards the measurement result, if the number of first qubits that are in the state |1 after the gate operation specified by the first subcircuit is different from the predetermined number.

SCALABLE ARCHITECTURE FOR COUPLING ANDREEV SPIN QUBITS, AND METHODS OF MANUFACTURING AND OPERATING SUCH

Resumen de: WO2025116723A1

The disclosure relates to scalable architectures for coupling Andreev spin qubits (ASQs), and methods of manufacturing and operating such. Disclosed are an ASQ circuit, a method of manufacturing the ASQ circuit and a method of operating the ASQ circuit to couple two or more ASQs. The provided ASQ circuit enables selective connectivity between any pair of ASQs while maintaining other ASQs uncoupled. Thereby, a scalable architecture for coupling multiple ASQs is provided. Furthermore, an all-to-all connectivity is achieved, which means a largely increased qubit connectivity opening the possibility of using quantum error correction codes with a lower number of physical qubits per logical qubit than existent approaches, thus giving more flexibility in using number-efficient correction codes. Furthermore, the all-to-all connectivity increases the range of computational or physical problems that can be simulated without the need for sacrificial qubits.

HIGH RESOLUTION, DIRECT SYNTHESIS OF QUBIT CONTROL SIGNALS

Resumen de: US20250175165A1

Disclosed herein is a new paradigm for qubit control using clock multipliers and dual sampling rate direct synthesis to avoid Nyquist zone gaps while covering a wide spectrum without using any synthesizer that compromises the phase noise. This system and method for multi-Nyquist direct synthesis qubit control using clock multipliers and double sampling rate is scalable to thousands of RF channels synchronized to the picosecond level.

METHOD AND SYSTEM FOR DETERMINING A SOLUTION TO A MASTER PROBLEM USING A QUANTUM COMPUTER

Resumen de: EP4560543A1

0001 A computer implemented method determines a solution to a Master Problem, MP, the MP derived from a Mixed-Integer Program, MIP, problem and associated with a Sub-Problem, SP. The method comprises determining, using a quantum computer, a solution to a first version of the MP. The first version of the MP comprises a first initial constraint. The solution to the first version of the MP comprising: a first value for the group of one or more respective integer variables. The SP is run, using the one or more first values, to determine either: a third value, corresponding to the dual problem, for a solution for the SP; a fourth value corresponding to an extreme ray. Using the third value or fourth value, a further constraint for a second version of the MP is generated. The second version of the MP is generated by replacing the first initial constraint with the further constraint. A further solution to the second version of the MP is determined, using the quantum computer.

QUANTUM RANDOM NUMBER GENERATOR INTEGRATED ON BASIS OF CO-FIRED CERAMIC

Resumen de: EP4818884A1

The present disclosure provides a quantum random number generator based on co-fired ceramic integration, including: a co-fired ceramic substrate; and a quantum state preparation unit, a quantum state measurement chip, a first processing unit, and a second processing unit that are integrated on the co-fired ceramic substrate and connected in sequence. The quantum state preparation unit includes a laser chip, the quantum state measurement chip includes an edge coupler, and a light outlet of the laser chip is three-dimensionally aligned with an input end of the edge coupler by using a preset alignment structure formed on the co-fired ceramic substrate.

リザーバーコンピューティングに適した機械学習モデルのための構造、及び、材料予測劣化を予測するためのその応用

Resumen de: EP4814803A1

0001 In order to improve that analysis and predictions of complex tasks such as material degradation prediction the invention proposes a machine learning model that is suitable for reservoir computing and comprises a computer-implemented input module configured for receiving input data; a plurality of reservoir networks, each reservoir network configured for receving data from the input module and for outputting reservoir state data; and computer-implemented readout module that is configured for receiving the reservoir state data from the reservoirs and for outputting readout data based on the reservoir state data. The reservoir networks can be computer-implemented or physically-implemented and at least one of them may involve a plurality of quibits.

ERROR-CORRECTED QUANTUM COMPUTATION USING TRANSVERSAL GATES AND CORRELATED DECODING

Resumen de: WO2026054794A2

Error-corrected quantum computation using transversal gates and correlated decoding is provided. A first and second logical qubit is encoded into physical qubits according to a quantum error correcting code. Based on the quantum error correcting code, a bipartite decoding graph is constructed corresponding to the first and the second logical qubits, the bipartite decoding graph comprising a plurality of detector nodes and a plurality of error nodes, each error node corresponding to an error mechanism. A transversal gate is applied to the first and the second logical qubits. Syndrome measurement of the first and the second logical qubits is performed. For each of the plurality of detector nodes affected by the corresponding error mechanism of one of the plurality of error nodes, an edge is generated on the bipartite decoding graph therebetween. A physical error configuration is determined from the bipartite decoding graph.

METHODS AND SYSTEMS FOR ADJUSTABLE-DEPTH CIRCUIT FOR CONTROLLED-NOT GATE

Resumen de: WO2025133370A1

The invention relates to methods and systems for polylogarithmic-depth controlled-NOT gate implementation in quantum circuits and computers and controlled-NOT gate thereof

QUANTUM NON-DEMOLITION MEASUREMENT OF OPTICAL MULTIPLY-AND-ACCUMULATE OPERATIONS

Resumen de: WO2025230574A1

An optical computing system may be provided. The optical computing system may include an optical multiply and accumulate circuit. The optical computing system may further include a quantum squeezer and a quantum anti-squeezer configured to allow a quantum non-demolition measurement of an output of the optical multiply and accumulate circuit.

BUFFERS FOR STREAMING IN QUANTUM-CENTRIC SUPERCOMPUTING

Resumen de: WO2025114217A1

One or more systems, devices, computer program products and/or computer- implemented methods of use provided herein relate to buffers for streaming in quantum- centric supercomputing. A system can comprise a memory that can store computer- executable components. The system can further comprise a processor that can execute the computer-executable components stored in the memory, wherein the computer-executable components can comprise a receiver component that can receive, from a source node, a quantum input and a release criterion associated with the quantum input. The computer- executable components can further comprise a computation component that can perform a computation based on the quantum input, in a buffering environment, to generate a result that can meet the release criterion.

FAULT-TOLERANT QUANTUM COMPUTING ARCHITECTURE

Resumen de: WO2025119691A2

According to an embodiment, a structure for a qubit architecture is presented. The structure may include a plurality of qubits. The structure may include a plurality of couplings between each qubits. The couplings are arranged based on a relationship between each qubit and its placement on a torus. The coupling for each qubit comprises coupling to four nearest neighbor qubits on the torus and coupling to two cross-coupled qubits based on a definition and a set of parameters of a bivariate bicycle code. Methods for using and manufacturing the qubit architecture are additionally presented.

QUANTUM ERROR CORRECTION CODE EVALUATION PROGRAM, QUANTUM ERROR CORRECTION CODE EVALUATION METHOD, AND INFORMATION PROCESSING DEVICE

Resumen de: EP4818991A1

0001 A computational load for evaluating a quantum error-correcting code is reduced. 0002 An information processing apparatus (10) generates, based on input-output information (4) indicating a correspondence between an input state and an output state including an influence of noise in a syndrome measurement of a second quantum error-correcting code (3), a first map (5) that transforms the input state into the output state. The information processing apparatus (10) generates a second map (6) by extracting a magnitude of the influence exerted by the noise from the first map (5), and generates a first quantum error-correcting code (8) formed of a plurality of second quantum error-correcting codes (3). The information processing apparatus (10) applies the noise generated in accordance with the second map (6) to each of the second quantum error-correcting codes (3) forming the first quantum error-correcting code (8), and evaluates an error-correcting performance of the first quantum error-correcting code (8) against a quantum error caused by the influence of the noise.

METHOD FOR DETERMINING A GROUND STATE OF A QUANTUM SYSTEM, METHOD FOR PREPARING A GROUND STATE OF A QUANTUM SYSTEM BY MEANS OF A QUANTUM COMPUTER, HYBRID COMPUTER PLATFORM, ADIABATIC VARIATIONAL QUANTUM ALGORITHM

Resumen de: WO2025113881A1

The invention describes a method (100) for determining a ground state (1000) of a quantum system, wherein the quantum system comprises a simplified quantum system and a correction quantum system, wherein the method comprises the following steps: • providing o a variational quantum thermaliser (1010), comprising at least one quantum circuit (1011), and o a temperature value (1001); • determining (102) a thermal state (1020) of the simplified quantum system at the temperature value (1001) by means of the variational quantum thermaliser (1010); • determining a thermal state (10202) of the quantum system by performing a time evolution (1025) of the thermal state (1020) of the simplified quantum system, wherein the time evolution (1025) starts in the simplified quantum system and ends in the quantum system by time-dependent successive activation of the correction quantum system; • determining (103) a spectrum (1030) of the quantum system using the time-evolved thermal state (10202) of the quantum system; • determining (104) the ground state (1000) of the quantum system by selecting the state from the spectrum (1030) of the quantum system with which the lowest energy is associated as the ground state (1000) of the quantum system.

A STOCHASTIC PROCESSING UNIT, A CLASSICAL PROCESSING UNIT, A HYBRID PROCESSING UNIT, AND A METHOD FOR PERFORMING AT LEAST ONE STOCHASTIC COMPUTATION

Resumen de: WO2025114638A1

The invention relates to a stochastic processing unit (102) for use in a cryogenic environment, comprising a conversion unit (106) and a stochastic processing module (104). The conversion unit is configured to receive at least one external deterministic digital input signal (002) and transmit at least one external deterministic digital output signal (008). The stochastic processing module (104) is configured to perform at least one stochastic computation operation. The conversion unit (106) is further configured to convert at least one received external deterministic digital input signal (002) into a stochastic signal and transmit said stochastic signal to the stochastic processing module (104) as an internal stochastic output signal (006a). The stochastic processing module (104) is further configured to perform the at least one stochastic computation operation based on the at least one internal stochastic output signal (006a) to obtain at least one internal stochastic input signal (004a) and transmit said at least one internal stochastic input signal (004a) to the conversion unit (106). The conversion unit (106) is additionally configured to convert at least one received internal stochastic input signal (004a) to a deterministic digital signal to obtain at least one external deterministic digital output signal (008) to be transmitted. The invention also relates to a classical processing unit (202), to a hybrid processing unit (222) and to a method of performing at least one

METHODS AND SYSTEMS FOR DECOMPOSING A QUANTUM CIRCUIT

Resumen de: WO2025116818A1

Methods and systems for decomposing a quantum circuit are described A method of decomposing a quantum circuit comprises: dividing the quantum circuit into a first sub- circuit and second sub-circuit; determining a pre-processing unitary operator and a post-processing unitary operator which approximate local evolutions on the first sub- circuit and second sub-circuit; determining gate decompositions of the pre-processing unitary operator and the post-processing unitary operator; and using the gate decompositions of the pre-processing unitary operator and the post-processing unitary operator to determine a gate decomposition of the quantum circuit.

METHOD AND SYSTEM FOR PREDICTING COLLISION BETWEEN COMPONENTS OF A VEHICLE

Resumen de: GB2636345A

A system (210, figure 2) and a method 400 is used for predicting a collision between components of a vehicle. The method includes collecting, by a controller (208), data associated with at least two components of the vehicle from a data system 410. The method further includes extracting one or more features of the at least two components from the collected data 420, training a quantum circuit model based on the one or more features of the at least two components 450, and then predicting the collision between the at least two components via the quantum circuit model 460. A calculated maximum thickness of the collision uses the Hausdorff distance between the at least two components. Quantum bits based on scaled data are generated and form a quantum circuit in a grid lattice which transforms a tensor, corresponding to the scaled data, to a quantum tensor which is input into a neural network to train the quantum circuit model.

CIRCULATORS WITH VOLTAGE-TUNABLE INDUCTORS FORMED USING SUPERCONDUCTOR-SEMICONDUCTOR JUNCTIONS

Resumen de: EP4819491A2

Circulators with voltage-tunable inductors formed using superconductor-semiconductor junctions are described. An example circulator includes a first transfer switch (220) including a first plurality of ports, where the first transfer switch comprises a first plurality of superconductor-semiconductor junctions. The circulator further comprises a second transfer switch (240) including a third plurality of ports, where the second transfer switch comprises a second plurality of superconductor-semiconductor junctions. The circulator further comprises a first delay line (212) and a second delay line (214) coupled between the first transfer switch and the second transfer switch. Modulation of gate voltages being applied to respective superconductor-semiconductor junctions allows the first transfer switch and the second transfer switch, in combination with the first delay line and the second delay line, to enable non-reciprocal communication with the quantum device.

COMPUTER-IMPLEMENTED METHOD FOR CALCULATING A PLURALITY OF STEADY STATES OF AN OPEN QUANTUM SYSTEM

Resumen de: EP4818989A1

0001 A computer implemented method for calculating a plurality of steady states of an open quantum system which is a physical quantum system being governed by a Lindblad master equation parametrized by a set of parameters p which characterize the physical quantum system and comprise fixed parameters and variable parameters, comprising the following operations: a) based on an initial set of parameters p0 , reformulating (200) said Linblad master equation in the form L p = L 0 + Δ p L 1 where p = p 0 + Δp , L 0 = L p 0 , and is a Liouvillian, b) summing the trace superoperator T with a chosen complex coefficient b to ,to obtain , and performing (210) a LU decomposition or an incomplete LU decomposition of , after operation b), for each of a plurality of parameters sets {pk}k such that pk = p0+ Δk, c) computing (220) a candidate steady state ρ̂k by c1) determining a steady state basis {ρ̂ss(n) }n, where n is an integer smaller than a chosen maximum number N0 of basis members, in which the first member is derived from b or Δk, and all basis membe

A METHOD FOR PROVIDING MULTIPLE ROUNDS OF ERROR CORRECTIONS FOR A QUANTUM ERROR CORRECTION CODE

Resumen de: EP4818990A1

The invention concerns a method for providing rounds of error corrections for a quantum error correction code comprising the following steps:- initializing a quantum register with N data qubits and a number R of sets of K ancilla qubits,- encoding logical information on the N data qubits,- performing R cycles of operations on the quantum register, each cycle of operations comprising entangling gates between part of the N data qubits with part of a distinct set of K ancilla qubits, and- obtaining measurements from the N data qubits and from each of the R sets, each measurement being the result of a quantum projection operation applied on the considered qubit and of the readout of the quantum projection, the measurements obtained from the R sets enabling carrying out R rounds of error corrections on the measurements obtained from the N data qubits.

METHOD AND SYSTEM FOR SOLVING ROBUST OPTIMIZATION PROBLEMS

Resumen de: EP4818988A1

0001 A computer implemented method for obtaining a set of one or more robust solutions xr to a classical robust optimization problem is provided. The one or more robust solutions provide optimal values of one or more cost functions C(x, α), each cost function being a function of one or more variables x and of one or more scenario variables α ∈ , representing all possible scenarios, each scenario being characterized by a respective set of scenario variables α, and where each robust solution is specified by a set of parameters γ and by the scenario variables α. The hybrid quantum-classical computer system comprises a classical computation component and a quantum information processing (QIP) component that are used together to solve the robust optimization problem. While performing the method, the QIP component executes a parameterized quantum circuit with the set of parameters and using the set of scenario variables.

A METHOD FOR MANUFACTURING A SILICON CARBIDE ON INSULATOR

Resumen de: EP4819197A1

The invention relates to a method for manufacturing a silicon carbide on insulator, said method comprising the following steps:a) providing a substrate,b) providing a silicon carbide structure,at least one of the substrate and of the silicon carbide structure being provided with an electrically insulating layer;c) arranging the silicon carbide structure against the substrate with the electrically insulating layer between them so as to form a contact between them;d) focusing a laser beam towards the electrically insulating layer to weld the silicon carbide structure to the substrate, the laser beam being controlled to define one or several welded areas separated by one or several non-welded areas.The invention also relates to a method for manufacturing SiCOI photonic structures that may contain one or several color centers, from a SiCOI structure obtained with the manufacturing method of the invention.

QUANDLE-BASED CRYPTOGRAPHY

Resumen de: EP4819531A1

A method for secure computation includes receiving a specification of an input variable including one or more first elements of a quandle and an arithmetic computation to be performed over the input variable. The input variable is encrypted using a first operation of the quandle performed over the input variable together with an encoding variable including one or more non-unity second elements of the quandle. The arithmetic computation is applied to the encrypted input variable to produce an encrypted output variable. The encrypted output variable is decrypted using the encoding variable and a second operation of the quandle to obtain a result of the arithmetic computation over the variable.

AI-DRIVEN SYSTEM AND METHOD FOR POSTHUMOUS ADAPTIVE AI TWIN EVOLUTION, QUANTUM-SECURED LEGACY PRESERVATION, AND MULTI-GENERATIONAL THERAPEUTIC INTERACTION WITH REGRESSION THERAPY

Nº publicación: EP4819151A1 07/10/2026

Solicitante:

WIEM CHIHA [BE]
Wiem, Chiha

Resumen de: EP4819151A1

0001 An Al-driven system and method for dynamic digital legacy preservation and multi-generational knowledge transfer, addressing the challenge of secure, emotionally intelligent legacy preservation across generations. 0002 The system integrates Adaptive Al Twins, a Quantum-Secured Legacy Vault with lattice-based cryptography, and virtual reality (VR) environments to enable posthumous Al evolution, milestone-based memory unlocking, and therapeutic memory retrieval. Key features include an Al-Guided Emotional Memory Structuring System for subconscious memory retrieval using NLP-based regression therapy, an Al-Driven Multi-Generational Knowledge Transfer System for real-time holographic interactions, and accessibility interfaces (e.g., EEG neuro-interfaces) for inclusive use. 0003 The system evolves through a continuous framework, from memory capture to a Mournalverse ecosystem, and supports lifelong Al Twin companionship for emotional coaching. It facilitates therapeutic memory retrieval, provides real-time mentorship, and ensures long-term legacy preservation, with scalability for future technologies like brain-computer interfaces.