12872 results about "Quantum mechanics" patented technology

The present disclosure provides a charged particle element and relates apparatus and methods. In one arrangement, the element comprises a beam manipulator configured to operate on a plurality of charged particle beams in a beam grid. The beam manipulator comprises a plurality of plates. Each plate has two surfaces and a plurality of apertures. The plates comprises at least one curved-surface plate with a curved surface. The curved surface faces a facing surface of an adjacent plate. Deflections are applied to beams by controlling a potential difference between the curved surface and the facing surface.

The invention provides a permanent magnet motor and a variable-frequency scroll compressor, and relates to the technical field of scroll compressor design and manufacturing, and the permanent magnet motor comprises a stator iron core and a rotor iron core; the stator iron core comprises stator slots which are uniformly distributed along the circumference, copper windings are embedded in the slots, stator yokes which are uniformly distributed are arranged outside the bottom of each slot, each stator yoke is provided with an arc-shaped long slot, stator teeth are arranged between every two adjacent stator slots, and the tops of the stator teeth are sunken to form through-flow slots; the rotor core is internally provided with magnetic steel grooves which are uniformly distributed, two same first magnetic isolation grooves are arranged between two adjacent magnetic steel grooves, magnetic steel is arranged in the magnetic steel grooves, and the top of each magnetic steel is provided with two second magnetic isolation grooves which are symmetrically distributed. The outer side radius Rs1 of the stator core, the inner side radius Rs2 of the stator core and the axial length Lis of the stator core meet the following conditions: 1.282 < = Lis / (Rs1-Rs2) < = 2.778, and 34 < = Rs1-Rs2 < = 39 mm. The power density of the motor can be increased, the cost is reduced, the efficiency is improved, and the harmonic content is reduced so as to suppress torque ripple.

An apparatus may include a substrate. The apparatus may also include a first charger terminal disposed on the substrate and configured to apply a first electric potential to a first battery terminal of a battery. The apparatus may additionally include a second charger terminal disposed on the substrate and configured to apply a second electric potential to a second battery terminal of the battery. The apparatus may further include a barrier located on the substrate between the first charger terminal and the second charger terminal and configured to electrically isolate the first charger terminal and the second charger terminal by obstructing formation of a conductive path by way of a liquid disposed on the substrate.

In one embodiment, a method includes receiving, by a mixed reality (MR) display device, an audio input from a first user of the MR display device, where the MR display device is associated with an MR environment including several MR objects, processing, using a natural language understanding (NLU) model, the audio input to identify one or more intents and one or more slots associated with the audio input, identifying a first MR object from several MR objects that is in an active listening state, where the first MR object is associated with a first set of intents and a first set of slots, determining that either the first set of intents or the first set of slots do not include the one or more identified intents or the one or more identified slots associated with the audio input, and generating, using a large language model (LLM), an out-of-domain (OOD) response.

The invention provides a motor, a camera module and electronic equipment. The motor comprises a base, a focusing carrier, an anti-shake carrier, a focusing magnetic piece, a focusing coil, a first anti-shake coil, a second anti-shake coil, a first anti-shake magnetic piece, a second anti-shake magnetic piece and an electric connecting piece. The anti-shake carrier is located on the inner side of the focusing carrier. The focusing coil faces the focusing magnetic piece, the first anti-shake coil is located on one side of the first anti-shake magnetic piece, the first anti-shake coil faces the first anti-shake magnetic piece, the second anti-shake coil is located on one side of the second anti-shake magnetic piece, and the second anti-shake coil faces the second anti-shake magnetic piece; the electric connecting piece comprises a first fixing part, a deformation part and a second fixing part, the second fixing part is electrically connected with the focusing coil, the first anti-shake coil and the second anti-shake coil, and when the focusing carrier moves in the first direction relative to the base, the deformation part deforms. The motor is of a focusing support anti-shake structure, the size of the motor is small, and the structure and the electric connection mode of the motor are simple.

Systems, apparatuses, methods, and computer program products are disclosed for authentication of devices. An example method includes an authentication technique utilizing multiple authentication factors. The first authentication factor includes obtaining identical quantum entangled particles by a first device and a second device. The first and second device may read the quantum entangled particles to obtain identical bit sequences associated with the quantum entangled particles. The first and second device may utilize the bit sequences, along with a second factor, to authenticate a connection between the devices. The second factor may be, for example, a user password. The first device may send a request for authentication including one of the bit sequences and an encrypted version of the user's password. The second device may authenticate the first device using an identical copy of the bit sequence and previously obtained knowledge of the user's password.

A system and method in at least one embodiment generates, transmits and distributes a diamagnetic field using a flux field generator and a distribution system. In at least one embodiment, the flux field generator is mounted on a platform or a vehicle. In a further embodiment, the flux field generator is not vehicle based.

Provided herein are low resistance metallization stack structures for logic and memory applications and related methods of fabrication. The methods involve forming bulk conductive films on thin low resistivity transition metal layers that have large grain size. The bulk conductive films follow the grains of the low resistivity transition metal films, resulting in large grain size. Also provided are devices including template layers and bulk films.

Various systems and methods are presented regarding applying a non-Clifford logical CCZ gate in a 2D topological code, e.g., a 2D Abelian code. A Kirigami cut and fold process is applied to an initial 3D quantum error-correcting code composed of three copies of 3D surface codes to reduce (cut) a qubit lattice to a hollow cube such that the cube is formed of surfaces comprising qubits. The CCZ is applied to the hollow cube, with the cube subsequently flattened (folded) from the 3D arrangement to a 2D code arrangement. A lattice surgery process can be performed to map / transfer the 2D code arrangement to an ancilla Kirigami code(s), whereupon the 2D code arrangement can be returned to a 2D surface code for further application of a logical Clifford gate, if so desired.

A quantum key generation method is disclosed herein. In a specific embodiment, the method comprises receiving a quantum transmission from a quantum transmission device 208, 508, 510, 520, the quantum transmission including quantum bits for obtaining a quantum key, detecting the quantum bits from the quantum transmission to obtain a detected bit-sequence: obtaining a derived value from the detected bit-sequence; and verifying that the derived value is consistent with an expected value of the derived value corresponding to a test value of a same statistical characteristic that is dependent on a statistical property of a key generation bit-sequence 334, 1334 used for encoding or decoding of quantum bits to detect tampering. A quantum key generation system 200 is also disclosed.

A self-docking faucet is provided. The faucet comprises a body and an arm extending from the body. A hose extends from the body and is fluidly coupled to an adapter, which is fluidly coupled to a sprayhead. The arm comprises a first magnetic component and the adapter comprises a second magnetic component. The first and second magnetic components exert an attractive magnetic force on one another to cause the adapter—and, therefore, the sprayhead—to be pulled toward and docked to a docking portion of the arm.

A quantum computing service includes a quantum circuit compilation module that uses received information about quantum processing units (QPUs) along with information about a quantum circuit to be compiled in order to generate an optimized ordered list of compilation passes to be performed to compile the quantum circuit for execution on a given QPU.

A plurality of half-bridge LLC converters including a resonance circuit including resonant capacitors Cr1 to Crn are included as a circuit element 10, and a resonant capacitor Crk (k is a natural number of 1 to n) of each of the circuit element 10 has one end connected in series to a resonant reactor Lr and a primary winding N of a transformer T, and another end connected to the resonant capacitor Crk of another one of the circuit elements 10 so as to construct a k-dimensional multiphase LLC converter having a phase difference of 360° / Pk by Pk (Pk is any natural number of two or more) of the circuit elements 10, secondary windings S of a transformer of the circuit element 10 operating in the same phase are connected in series and the secondary windings are star-connected.

The technology relates to enhancing performance of quantum sensor operation in a noisy environment. Quantum neural networks are used to pre- and post-process analog signals to which qubits of a quantum sensor are exposed. Intra-processing using additional quantum neural networks may also be employed. This approach filters out noise from both the input analog signal and the system itself to achieve a very high signal to noise ratio. This permits the system to detect induced dynamics associated during exposure of the qubits to the analog signals. This enables the quantum sensor to sense a change in a state of a system under test, which can be beneficial for areas such as imaging, magnetometry, sensing electric fields, optomechanical sensors, quantum radar and other areas where enhanced signal to noise ratios are desired.

A magnet assembly in accordance with at least one of the present inventions may include a case defining a central axis and including first and second end walls and a side wall, with an inner surface, between the first and second end walls, a frame within the case and rotatable about the central axis of the case, a plurality of diametrically magnetized magnets that are located in the frame, that each define a longitudinal axis and a N-S direction, and that are rotatable about the longitudinal axis relative to the frame, and a ring, defining an outer surface, between the frame and the case side wall and offset from the case side wall such that a first air gap is located between the inner surface of the case side wall and the outer surface of the ring.

Techniques for machine learning assisted qubit state readout are disclosed. A system a set of training data that describes states of multiple qubits, and trains a neural network to determine qubit states based on the set of training data. The system obtains one or more unlabeled qubit signals, and determines one or more states corresponding to the unlabeled qubit signal(s), using the neural network. The unlabeled qubit signal(s) may include one or more multiplexed qubit signals, and the state(s) corresponding to the unlabeled qubit signal(s) may include one or more multi-qubit states based on the multiplexed qubit signal(s).

The invention relates to a steam foaming foam plastic particle uniformity judgment method. The method comprises the following steps: acquiring a particle image of to-be-produced plastic in a heating process through an image acquisition assembly; performing feature extraction on the particle image to obtain target features; the target feature comprises at least one of color, size and shape; performing image segmentation on the particle image based on the target features to obtain different sub-regions; and determining the particle uniformity of the to-be-produced plastic based on the deviation values of the target characteristics in the different sub-regions. Through real-time analysis of color, size, shape and other characteristics, particle aggregation, uneven melting or impurity mixing (such as carbonized particles) can be rapidly identified, the particle uniformity in the plastic production process can be monitored in real time, and hysteresis of a traditional detection method is reduced.

In a general aspect, a quantum program can be automatically synthesized or compiled. In some implementations, a discretized state space is obtained. The discretized state space includes a plurality of states for one or more qubits of a quantum processor. A discrete action space is obtained. The discrete action space includes a plurality of unitary operations for the one or more qubits of the quantum processor. A policy that uses the discretized state space and the discrete action space to generate quantum programs for quantum state preparation is defined. A dynamic programming process is used to improve the policy. An initial state and a target state of the one or more qubits is identified. The policy is used to generate a quantum program to produce the target state from the initial state. The quantum program include a subset of the unitary operations in the discrete action space.

In various examples, systems and methods for decomposition of quantum oracles for simulating quantum circuits are provided. A simulation platform may receive as input a representation of a quantum circuit that comprises decomposable Boolean functions that define a quantum oracle and convert a Boolean representation of the quantum oracle to a set of Boolean functions. The Boolean functions may be used to create an oracle tensor network (e.g., a MPO sub-tensor network) comprising an exact representation of the Boolean representation of the quantum oracle. The oracle tensor network representation may be incorporated into a tensor network representation of the quantum circuit and passed to the simulation platform in order to simulate the quantum circuit.