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244
results.
Updated on
22/10/2026 [11:42:00]
Results 200 to 225 of 244
Absstract of: US20260311727A1
A system includes a first photonic integrated circuit. The circuit includes a qubit encoder configured to receive a spatial-mode qubit and convert the spatial-mode qubit to a temporal-mode qubit and an optical interconnect configured to receive and transmit the temporal-mode qubit. The system further includes a second photonic integrated circuit, itself including a qubit decoder configured to receive the temporal-mode qubit and convert the temporal-mode qubit back into the spatial-mode qubit.
Absstract of: WO2026212588A2
An atomic object confinement apparatus includes a substrate comprising a plurality of metal routing features; a plurality of electrodes disposed on a surface of the substrate and in electric communication with respective metal routing features of the plurality of metal routing features; and a plurality of gaps. Respective gaps of the plurality of gaps disposed between adjacent electrodes of the plurality of electrodes. Respective exposed surfaces of the plurality of electrodes have root mean square (RMS) roughness of 10 nm or less.
Absstract of: US20260312993A1
0000 Aspects of the subject disclosure may include, for example, monitoring a security status of a wireless communication session comprising a back-haul link supporting a classical communication channel between a wireless access point and a wireless mobility core network. The classical communication channel is adapted to transport underlying data of the wireless communication session and, responsive to determining a change in the security status, associating with the wireless communication session a quantum communication channel adapted to transport information via qubits. Information is exchanged between the wireless access point and the mobility core network via the qubits of the quantum communication channel, wherein the exchanging of the information via the qubits enhances a security level of the wireless communication session in view of a perceived threat. Other embodiments are disclosed.
Absstract of: US20260311016A1
Entanglement among qubits can be generated using “rasterized” and interleaving techniques. A circuit can include a resource state generator that generates one resource state per clock cycle, with each resource state having a number of entangled qubits. The circuit can also include circuits and delay lines to perform entangling measurement operations on qubits of resource states generated by the same resource state generator in different clock cycles. With appropriate selection of delay lines, a single resource state generator can generate all of the resource states needed to generate a large entanglement structure. Hybrid techniques can also be used, where the number of resource state circuits is greater than one but less than the number of resource states needed to generate the entanglement structure.
Absstract of: US20260311029A1
Methods, systems and apparatus for correcting a result of a quantum computation. In one aspect, a method includes selecting a quantum error correcting code for the quantum computation, wherein the quantum error correcting code is defined by multiple stabilizer generators; determining a set of symmetry operators, comprising: selecting a subset of the stabilizer generators, determining, for each selected stabilizer generator, a sum between an identity operator and the stabilizer generator, and multiplying the determined sums together to form a summation of terms, wherein each term in the summation is equal to a respective symmetry operator; measuring a projective correction of a physical observable over an output quantum state of the quantum computation using the determined set of symmetry operators, wherein the physical observable corresponds to the result of the quantum computation; and determining a corrected result of the quantum computation using the measured projective correction of the physical observable.
Absstract of: US20260311028A1
Applying Gottesman-Kitaev-Preskill (GKP) error correction to Gaussian input states, such as vacuum, produces distillable magic states, achieving universality without additional non-Gaussian elements. Gaussian operations are sufficient for fault-tolerant, universal quantum computing given a supply of GKP-encoded Pauli eigenstates.
Absstract of: WO2026208071A1
The present invention relates to the technical field of artificial intelligence, and disclosed are an efficient neural network model compression system and method based on differentiable quantization with relaxation. The method comprises: step 1: collecting a dataset, and dividing the dataset into a training set, a validation set, and a test set; step 2: constructing a neural network model containing L layers and performing initialization processing; step 3: extracting sample data from the dataset, inputting the sample data into the neural network model for forward propagation, and obtaining a model output; step 4: calculating a total loss function; step 5: calculating gradients of the total loss function with respect to parameters, performing directed updating on the parameters, and dynamically adjusting the parameters by means of an exploration-exploitation strategy; step 6: iteratively repeating steps 3 to 5, and stopping iterative training when a first preset target is achieved; and step 7: evaluating performance indicators of the neural network model until a second preset target is achieved, and then stopping training and evaluation. The present invention achieves more efficient compression while maintaining model accuracy.
Absstract of: US20260311030A1
0000 Methods, systems, and apparatus for performing an entangling operation on a system of qubits. In one aspect, a method includes operating the system of qubits, wherein the system of qubits comprises: a plurality of first qubits, a plurality of second qubits, a plurality of qubit couplers defining nearest neighbor interactions between the first qubits and second qubits, wherein the system of qubits is arranged as a two dimensional grid and each qubit of the multiple first qubits is coupled to multiple second qubits through respective qubit couplers, and wherein operating the system of qubits comprises: pairing multiple first qubits with respective neighboring second qubits; performing an entangling operation on each paired first and second qubit in parallel, comprising detuning each second qubit in the paired first and second qubits in parallel.
Absstract of: WO2026209958A1
The invention provides a method for driving a quantum system comprising at least two qubits coupled to one another in a quantum sub-system, the method comprising generating a composite time-varying electromagnetic signal, which is a composition of a time-varying electromagnetic signal and for each oscillation in the quantum sub-system a time delayed version of substantially this time-varying electromagnetic signal, delayed by a customized delay time ���� with respect to the time-varying electromagnetic signal for generating a notch in the composite electromagnetic signal spectrum, and applying the composite electromagnetic signal to the quantum sub-system.
Absstract of: US20260311022A1
A quantum-computer control technique is disclosed for reducing quantum processing unit runtime or a number of executed measurement shots while achieving a target statistical uncertainty of an output result. Quantum circuits are sampled from a base set according to a circuit distribution, and, for each sampled circuit, a number of measurement shots is determined in accordance with a shot distribution and executed on one or more qubits to obtain measurement results. An expected variance of an expectation value estimate is computed based on the measurement results and is based on at least a shot-related variance component and a circuit-to-circuit variance component. Based on the expected variance, one or more execution parameters for a subsequent quantum computation are determined, including a number of circuits, a number of shots, and/or updated distributions, and the subsequent computation is executed accordingly. System, storage-medium, and simulation embodiments are also described.
Absstract of: US20260311026A1
0000 An electronic device may include programmable logic that generates a first digital signal; an encoder that encodes the first digital signal as a positive amplitude and a negative amplitude using a first RF waveform that is selected based on a value of the first digital signal and comprises an initial calibration pulse; an output port that outputs the encoded first analog signal to a second electronic device over a low-latency connection; an input port that receives an encoded second analog signal from the second electronic device over the low-latency connection; a decoder that extracts the encoded second digital signal into a second digital signal by measuring the encoded second digital signal and a received calibration pulse in the encoded second digital signal; and an input/output interface provides the second digital signal to a system that is configured to execute an action based on the second digital signal.
Absstract of: US20260311013A1
0000 The invention introduces a Total Wave structure of the Modified Schrödinger Equation (MSE) that deterministically governs quantum collapse using co-evolving field-specific wave-functions. Unlike conventional quantum mechanics, which treats wavefunction collapse as a postulated or probabilistic phenomenon, this invention models collapse as a structured outcome of wave interference from multiple physical fields—electromagnetic, gravitational, strong nuclear, and weak nuclear—each governed by its own nonlinear MSE. 0000 The system wavefunction Ψ
evolves under the influence of these field-specific observer waves Ψ
Absstract of: WO2026209567A1
The invention presents a computer-implemented method (100) and system for constructing optimized prompts for large language models. The method (100) involves acquiring an initial prompt from a user, generating multiple responses from the large language model, and selecting responses that contain multiple reasons. These reasons are embedded and semantically compared to create a distinct set. The distinct reasons are then mapped into a higher-order unconstrained binary optimization problem, which captures complex interactions among reasons. The optimization problem is solved using a quantum processing unit, yielding optimal reasons that are used to construct a final prompt. This optimized prompt enhances the reasoning capabilities of large language models by effectively modeling multi-factor dependencies and interactions.
Absstract of: WO2026210195A1
A modular, room-temperature photonic quantum computer with AI-driven fault correction, thermal control, and dynamic scalability. A modular quantum computing system is disclosed, operating at room temperature and built from interconnected photonic qubit modules. Each module integrates single-photon sources, optical waveguides, environmental sensors, and a local AI controller. A global artificial intelligence subsystem coordinates real-time error correction, timing synchronization, and dynamic workload balancing using reinforcement learning. The architecture incorporates graphene-based thermal management for passive and predictive heat control, eliminating the need for cryogenic cooling. Modules are hot-swappable, auto-calibrating, and operable in rugged, non-laboratory environments. This system enables scalable, fault-tolerant, high-fidelity quantum computation through a distributed, self-regulating architecture optimized for field deployment.
Absstract of: WO2026213054A1
A quantum device includes an actuator including a graphene material and having a proximal end mounted to an actuator anchor; an electrode disposed on a distal end of the actuator; a quantum dot, configured to localize a single electron, the quantum dot and the electrode disposed within a common vacuum to define a tunneling gap; and a quantum dot anchor, comprising the graphene material, disposed in a same plane as the quantum dot relative to the electrode. The quantum device may include a modulator configured to emit electromagnetic signaling within a particular frequency range. The graphene material is tuned to increase a Casimir force between the electrode and the quantum dot anchor in response to the electromagnetic signaling. The increased Casimir force causes the actuator to deform to bring the electrode within an electron tunneling range of the quantum dot, or lowers a tunneling barrier on a static electrode.
Absstract of: US20260311012A1
Reinforcement learning with noise emulation to prepare quantum states is disclosed. Using a dataset of random states, a model is trained to generate a preliminary circuit. A state preparation circuit, which is an inverse of the preliminary circuit can be used to place a quantum computing system in a desired initial state. Quantum jobs can be executed after the initial state is prepared.
Absstract of: US20260311020A1
0000 One example method is directed to quantum job orchestration, and includes obtaining, by an orchestration instance, telemetry from respective control planes associated with one or more QPUs (quantum processing units), providing the telemetry as input to an ML (machine learning) model of the orchestration instance, using the ML model to perform an inferencing process whose output is a profile that comprises information usable to make an orchestration decision for a job, based on the profile, orchestrating the job to a particular one of the QPUs, and broadcasting the profile to one or more other orchestration instances.
Absstract of: US20260311018A1
The technology described herein is directed towards a superconducting phase shifter with phase shift controlled via radio-frequency superconducting quantum interference devices (RF-SQUIDs). The phase shifter incorporates a quadrature hybrid coupler that divides an incoming microwave signal into microwave signals to reflective loads of the phase shifter. The inductances of the reflective loads are tuned by voltages/current levels applied to respective control lines coupled to RF-SQUID sets inductively coupled to inductors of the reflective loads. The reflected instances constructively interfere to output a finely (voltage) controlled phase-shifted signal. In one implementation, the superconducting phase shifter can be monolithically integrated on the same chip at the qubits. The superconducting phase shifter can be controlled by a classical computing device that can monitor a qubit's phase-related information, can adjust the phase control system, via the superconducting phase shifter in real time based on any detected phase drift and/or phase noise.
Absstract of: US20260311011A1
One example method includes receiving a quantum circuit for execution on a QPU (quantum processing unit), assigning qubits of the QPU to logical qubits of the quantum circuit, automatically adding, to the quantum circuit, one or more remaining qubits of the QPU as canary qubits, transmitting the quantum circuit to the QPU for execution, and transmitting one or more gate sequences to the QPU for execution by the canary qubits, and execution of the quantum circuit and execution of the gate sequences collectively comprise a single shot.
Absstract of: US20260311024A1
0000 Methods and apparatus for rule-based processing of quantum computing algorithms are described herein. Features of a quantum processing unit (QPU) may be onboarded to a quantum computing service provider using logical rules that, when executed, generate code used for preparing a quantum computing algorithm for execution on the QPU. For example, using the logical rules may decouple the functionalities of the quantum computing service from the features of QPU device capabilities.
Absstract of: 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.
Absstract of: 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
Absstract of: 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
Absstract of: 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.
Nº publicación: EP4819197A1 07/10/2026
Applicant:
UNIV STRASBOURG [FR]
CENTRE NAT RECH SCIENT [FR]
INSTITUT NAT DES SCIENCES APPLIQUEES DE STRASBOURG [FR]
INDUSTRIALISATION DES RECH SUR LES PROCEDES ET LES APPLICATIONS DU LASER [FR]
Universit\u00E9 de Strasbourg
Centre National de la Recherche Scientifique
Institut National des Sciences Appliqu\u00E9es de Strasbourg
Industrialisation des Recherches sur les Proc\u00E9d\u00E9s et les Applications du Laser
Absstract of: 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.
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