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8098179 Systems, methods and apparatus for digital-to-analog conversion of superconducting magnetic flux signals  
A superconducting flux digital-to-analog converter includes a superconducting inductor ladder circuit. The ladder circuit includes a plurality of closed superconducting current paths that each...
8055318 Superconducting integrated circuit technology using iron-arsenic compounds  
A new family of superconducting materials with critical temperature up to 55 K have recently been discovered, comprising a crystal structure with atomic layers of iron and arsenic alternating with...
8030725 Apparatus and methods for detecting evaporation conditions  
Apparatus and methods for detecting evaporation conditions in an evaporator for evaporating metal onto semiconductor wafers, such as GaAs wafers, are disclosed. One such apparatus can include a...
7977668 Multilayer structure with zirconium-oxide tunnel barriers and applications of same  
A multilayer structure with zirconium-oxide tunnel barriers. In one embodiment, the multilayer structure includes a first niobium (Nb) layer, a second niobium (Nb) layer, and a plurality of...
7932515 Quantum processor  
Multiple substrates that carry quantum devices are coupled to provide quantum mechanical communicators therebetween, for example, using superconducting interconnects, vias, solder and/or magnetic...
7932514 Microwave readout for flux-biased qubits  
A method for determining whether a quantum system comprising a superconducting qubit is occupying a first basis state or a second basis state once a measurement is performed is provided. The...
7870087 Processing relational database problems using analog processors  
Systems, methods and articles solve queries or database problems through the use of graphs. An association graph may be formed based on a query graph and a database graph. The association graph may...
7858966 Protected qubit based on superconducting current mirror  
A qubit implementation based on exciton condensation in capacitively coupled Josephson junction chains is disclosed. The qubit may be protected in the sense that unwanted terms in its effective...
7791065 Ultrasensitive optical detector having a large temporal resolution and using a waveguide, and methods for producing said detector  
An ultrasensitive optical detector with high resolution in time, using a waveguide, and a processes for manufacturing this detector. The detector is configured to detect at least one photon and...
7687938 Superconducting shielding for use with an integrated circuit for quantum computing  
An integrated circuit for quantum computing may include a superconducting shield to limit magnetic field interactions.
7595257 Process of forming an electronic device including a barrier layer  
An electronic device can include a substrate (12) having a primary surface (14), a second surface (16, 22) opposite the primary surface (14), and an electrode (50). In one embodiment, the electrode...
7579699 Systems and methods for performing quantum computations  
Apparatus and methods for performing quantum computations are disclosed. Such apparatus and methods may include identifying a first quantum state of a lattice having a system of quasi-particles...
7566896 Lattice platforms for performing quantum computations  
Apparatus and methods for performing quantum computations are disclosed. Such apparatus and methods may include identifying a first quantum state of a lattice having a system of quasi-particles...
7525202 Quantum computational systems  
Apparatus and methods for performing quantum computations are disclosed. Such quantum computational systems may include quantum computers, quantum cryptography systems, quantum information...
7522078 Method of generation and method of detection of interband phase difference solition and interband phase difference circuit  
The length portion of part of a multiband superconductor line 10 is used as a closed circuit line part Rc that constitutes part of a closed circuit allowing passage of an electric current Io...
7521708 High sensitivity ring-SQUID magnetic sensor  
More sensitive (especially due to reduced interference of flux noise) than a conventional SQUID, an inventive SQUID's major component is a hollow cylindric structure comprising one or more annular...
7479652 Qubit readout via controlled coherent tunnelling to probe state  
This invention concerns quantum computers in which the qubits are closed systems, in that the particle or particles are confined within the structure. A “site” can be produced by any method of con...
7449769 Superconducting system, superconducting circuit chip, and high-temperature superconducting junction device with a shunt resistor  
A superconducting system that includes an interface circuit capable of making the best use of a high-speed superconducting circuit and a high-speed semiconductor circuit. A multi-chip module in...
7411187 Ion trap in a semiconductor chip  
A micrometer-scale ion trap, fabricated on a monolithic chip using semiconductor micro-electromechanical systems (MEMS) technology. A single 111Cd+ ion is confined, laser cooled, and the heating...
7364923 Dressed qubits  
A quantum computing method comprising constructing a dressing transformation V between a physical Hamiltonian H and an ideal Hamiltonian HID. The physical Hamiltonian H describes a physical quantum...
7335909 Superconducting phase-charge qubits  
A quantum computing structure comprising a superconducting phase-charge qubit, wherein the superconducting phase-charge qubit comprises a superconducting loop with at least one Josephson junction....
7323711 High-temperature superconductive device  
A high-temperature superconductive device is disclosed, including a ramp-edge junction. The ramp-edge junction includes a first electrode layer (5) that defines the size of the ramp-edge junction...
7320732 Method for preparing atomistically straight boundary junctions in high temperature superconducting oxides  
A method for preparing film oxides deposited on a substrate with a resulting grain boundary junction that is atomistically straight. A bicrystal substrate having a straight grain boundary is...
7307275 Encoding and error suppression for superconducting quantum computers  
The present invention involves a quantum computing structure, comprising: one or more logical qubits, which is encoded into a plurality of superconducting qubits; and each of the logical qubits...
7230266 Conditional Rabi oscillation readout for quantum computing  
A method for determining whether a first state of a quantum system is occupied is provided. A driving signal is applied to the system at a frequency corresponding to an energy level separation...
7109518 Electronic element operable at room temperature using super-dielectric phenomenon  
This invention relates to an electronic element having an electron function which acts even at room temperature using a super dielectric effect. The element has a crystalline electron system, and...
7105853 Self-aligned junction passivation for superconductor integrated circuit  
A superconductor integrated circuit (1) includes an anodization ring (35) disposed around a perimeter of a tunnel junction region (27) for preventing a short-circuit between an outside contact (41)...
7105852 High speed electron tunneling devices  
A detector includes a voltage source for providing a bias voltage and first and second non-insulating layers, which are spaced apart such that the bias voltage can be applied therebetween and form...
7091515 High-temperature superconducting device and manufacturing method thereof  
At least two ramp-edge-structure Josephson junctions having different critical current densities to one another are provided on a substrate.
7067839 Tuning circuit with distributed tunnel junction elements and superconductor integrated circuit comprising the tuning circuit  
It is an object to provide a tuning circuit which has large fractional frequency band width, for example frequency band of the return loss of less than −10 dB. The tuning circuit is composed of a s...
7061008 Single molecule array on silicon substrate for quantum computer  
Individual hydrogen atoms are desorbed from a hydrogen terminated layer on a silicon substrate, using an STM tip, to form a pattern of exposed regions. A single donor-bearing molecule (such as...
7042005 Extra-substrate control system  
The present invention involves a quantum computing apparatus that includes a substrate attached to which is a flux shield upon which is at least one element of circuitry. The flux shield has an...
7015499 Permanent readout superconducting qubit  
A solid-state quantum computing structure includes a d-wave superconductor in sets of islands that clean Josephson junctions separate from a first superconducting bank. The d-wave superconductor...
7002174 Characterization and measurement of superconducting structures  
A structure comprising a tank circuit inductively coupled to a flux qubit or a phase qubit. In some embodiments, a low temperature preamplifier is in electrical communication with the tank circuit....
6987282 Quantum bit with a multi-terminal junction and loop with a phase shift  
A solid-state quantum computing qubit includes a multi-terminal junction coupled to a superconducting loop where the superconducting loop introduces a phase shift to the superconducting order...
6984846 Gradiometer-based flux qubit for quantum computing and method therefor  
A qubit (quantum bit) circuit includes a superconducting main loop that is electrically-completed by a serially-interconnected superconducting subloop. The subloop includes two Josephson junctions....
6979836 Superconducting low inductance qubit  
A superconducting structure that can operate, for example, as a qubit or a superconducting switch is presented. The structure includes a loop formed from two parts. A first part includes two...
6974967 Quantum logic gate and quantum logic operation method using exciton  
A quantum logic gate utilizes an inter-polarization (dipole—dipole) interaction between excitons having polarization in semiconductor quantum well structures, or a spin exchange interaction b...
6967344 Multi-terminal chalcogenide switching devices  
Multi-terminal electronic switching devices comprising a chalcogenide material switchable between a resistive state and a conductive state. The devices include a first terminal, a second terminal...
6963079 Semiconductor calculation device  
A parallel processor including two processor element groups each configured to simultaneously execute arithmetic operations for states of all logical values expressable by N bits (N is a natural...
6960780 Resonant controlled qubit system  
A circuit comprising a superconducting qubit and a resonant control system that is characterized by a resonant frequency. The resonant frequency of the control system is a function of a bias...
6958487 Device for generating a constant voltage and method for fabricating the same  
A mesa-shaped superconducting-superlattice structure is formed and adhered with epoxy onto a dielectric substrate where plural superconducting layers and plural insulating layers are naturally and...
6943368 Quantum logic using three energy levels  
A method for quantum computing with a quantum system comprising a first energy level, a second energy level, and a third energy level. The first energy level and said second energy level are...
6936841 Methods for controlling qubits  
A control system for an array of qubits is disclosed. The control system according to the present invention provides currents and voltages to qubits in the array of qubits in order to perform...
6909109 Superconducting digital first-in first-out buffer using physical back pressure mechanism  
A digital first-in first-out (FIFO) buffer (10) for use with Single Flux Quantum (SFQ) superconductive integrated circuits. The digital FIFO buffer (10) includes a clock-storage circuit (14) for...
6885325 Sub-flux quantum generator  
A sub-flux quantum generator includes an N-turn ring having a plurality of connected turns about a common aperture. The width of each respective turn in the N-turn ring exceeds the London...
6864503 Spacer chalcogenide memory method and device  
The present invention includes devices and methods to form memory cell devices including a spacer comprising a programmable resistive material alloy. Particular aspects of the present invention are...
6838694 Superconducting quantum-bit device based on Josephson junctions  
A superconducting quantum-bit device based on Josephson junction has a charge as a first principal degree of freedom assigned to writing and a phase as a second principal degree of freedom assigned...
6822255 Finger SQUID qubit device  
A finger SQUID qubit device and method for performing quantum computation with said device is disclosed. A finger SQUID qubit device includes a superconducting loop and one or more superconducting...
6818918 Josephson junctions with a continually graded barrier  
A Josephson junction includes first and second electrodes, each of which is formed of superconductive material. The first electrode has a first electrode face. A barrier of the junction extends...
Matches 1 - 50 out of 201 1 2 3 4 5 >