290 results about "Quantum system" patented technology

A reservation system and methodology ensures that all changes to a database in a federation are reliably and immediately communicated to all of the other databases in the federation. The system communicates information concerning hotel reservation transactions. The system comprises multiple applications each associated with one or more databases including hotel reservation data. The databases in the federation reflect transactions that are communicated to other databases and they also employ information received from other databases in determining the transactions that their associated local applications permit and the way in which they are processed. In one embodiment of the invention, communication among databases occurs through the Internet and data storage devices via secure packetized messages addressed to objects that represent the relevant databases. The system of the present invention also preferably includes a central database that functions as the primary source for verifying reservations and hotel data. Additionally, the system of the present invention also includes a yield subsystem that allows hotels to increase revenues. The yield subsystem calculates rates and availability based upon forecasted changes in supply and customer segment demand.

A method for computing using a quantum system comprising a plurality of superconducting qubits is provided. Quantum system can be in any one of at least two configurations including (i) an initialization Hamiltonian H₀ and (ii) a problem Hamiltonian H_P. The plurality of superconducting qubits are arranged with respect to one another, with a predetermined number of couplings between respective pairs of superconducting qubits in the plurality of qubits, such that the plurality of superconducting qubits, coupled by the predetermined number of couplings, collectively define a computational problem to be solved. In the method, quantum system is initialized to the initialization Hamiltonian H_O. Quantum system is then adiabatically changed until it is described by the ground state of the problem Hamiltonian H_P. The quantum state of quantum system is then readout thereby solving the computational problem to be solved.

A method for quantum computing using a quantum system comprising a plurality of qubits is provided. The system can be in any one of at least two configurations at any given time including one characterized by an initialization Hamiltonian H₀ and one characterized by a problem Hamiltonian H_P. The problem Hamiltonian H_P has a final state. Each respective first qubit in the qubits is arranged with respect to a respective second qubit in the qubits such that they define a predetermined coupling strength. The predetermined coupling strengths between the qubits in the plurality of qubits collectively define a computational problem to be solved. In the method, the system is initialized to H₀ and is then adiabatically changed until the system is described by the final state of the problem Hamiltonian H_P. Then the state of the system is read out by probing an observable of the σ_X Pauli matrix operator.

A sampling-based system and method for adaptively optimizing a computer program executing in an execution environment that comprises one or more compiler devices for providing various levels of program optimization. The system comprises a runtime measurements sub-system for monitoring execution of the computer program to be optimized, the monitoring including obtaining raw profile data samples and characterizing the raw profile data; a controller device for receiving the characterized raw profile data from the runtime measurements sub-system and analyzing the data for determining whether a level of program optimization for the executing program is to be performed by a compiler device, the controller generating a compilation plan in accordance with a determined level of optimization; and, a recompilation sub-system for receiving a compilation plan from the controller and invoking a compiler device for performing the level of program optimization of the executing program in accordance with the compilation plan.

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 method, comprising: applying a signal having a frequency through a transmission line coupled to the superconducting qubit characterized by two distinct, separate, and stable states of differing resonance frequencies each corresponding to the occupation of the first or second basis state prior to measurement; and measuring at least one of an output power or phase at an output port of the transmission line, wherein the measured output power or phase is indicative of whether the superconducting qubit is occupying the first basis state or the second basis state.

The present invention is directed to a dynamic channel selector for use with a wireless local area network and a method of selecting a channel therein. In one embodiment, the dynamic channel selector includes a channel quality subsystem that monitors a signal quality of a signal traversing a first channel of the wireless local area network and a noise level of the first channel. The dynamic channel selector also includes an interference mitigation subsystem, coupled to the channel quality subsystem, that selects a second channel of the wireless local area network as a function of the signal quality of the signal traversing the first channel and the noise level of the first channel.

The influence of surface geometry on metal properties is studied within the limit of the quantum theory of free electrons. It is shown that a metal surface can be modified with patterned indents to increase the Fermi energy level inside the metal, leading to decrease in electron work function. This effect would exist in any quantum system comprising fermions inside a potential energy box. Also disclosed is a method for making nanostructured surfaces having perpendicular features with sharp edges.

A pedometer navigator system is carried by a pedestrian, the pedometer system providing present position data as the pedestrian walks across terrain to be surveyed. The body frame is coupled to the pedestrian. An Euler Angle Measuring Subsystem (EAMS) coupled to a body frame measures and outputs the Euler angles of a fixed coordinate system with respect to an earth fixed navigational coordinate system. A left and right sensor is mounted on the pedestrian's respective left and right foot. An SBPMS (short baseline position measuring subsystem) is coupled to the body frame and has a position measuring coordinate system. The SBPMS measures and provides a respective left vector {right arrow over (rho)}leftp and a right vector {right arrow over (rho)}rightp characterizing the position of the left and right sensors with respect to the position measuring coordinate system origin. A computer and algorithm means responds to the Euler angles of the body frame coordinate system with respect to the earth fixed navigational coordinate system and the left vector and the right vector by determining an interval during which the left or right foot is stationary and for providing a transition vector referenced to the earth fixed navigational coordinate system characterizing the movement of the SBPMS origin during the interval the respective foot is stationary. A navigation algorithm adds each transition vector to the previous present position of the navigation reference system to obtain a next present position of the position measuring subsystem.

A thermoluminescence (TL) dosimetry (TLD) system comprises at least one TLD element that is controllably heated and which temperature is monitored in real time using an infrared (IR) radiometry subsystem that provides respective IR radiation inputs to a control subsystem. The control subsystem uses the inputs to effect the heating control. The TLD system further comprises a TL measuring subsystem for measuring TL emission data from each heated TLD element, the TL data used in obtaining a does curve indicative of the total radiation to which the TLD element has been exposed.

The invention relates to a mine water bursting disaster monitoring and early-warning system. The system comprises an in-situ measurement subsystem, a data acquisition subsystem, a data transmission control subsystem and a data and warning release subsystem. The in-situ measurement subsystem is connected to the data acquisition subsystem by a communication system, data input and output ports of the data acquisition subsystem are connected with the data input and output ports of the data transmission control subsystem by the communication system to realize bidirectional data transmission, and the data transmission subsystem is connected with the data and warning release subsystem by a computer network. The invention also relates to a control method of the mine water bursting disaster monitoring and early-warning system.

A programmable multifunction spectral and/or polarization imager. In one example, such an imager includes an imaging optical subsystem configured to receive electromagnetic radiation from a distant scene, a focal plane array configured to produce an image of the scene, and a programmable polarimetry subsystem electrically switchable between an ON state in which the polarimetry subsystem receives the electromagnetic radiation and provides polarized electromagnetic radiation to the focal plane array, and an OFF state in which the polarimetry system is configured as a first substantially clear aperture that passes the electromagnetic radiation to the focal plane array. In certain examples, the imager includes a programmable spectral imaging sub-system configurable between an ON state and an OFF state.

Methods and systems for measuring structural and material characteristics of semiconductor structures based on combined x-ray reflectometry (XRR) and x-ray photoelectron spectroscopy (XPS) are presented herein. A combined XRR and XPS system includes an x-ray illumination source and x-ray illumination optics shared by both the XRR and XPS measurement subsystems. This increases throughput and measurement accuracy by simultaneously collecting XRR and XPS measurement data from the same area of the wafer. A combined XRR and XPS system improves measurement accuracy by employing XRR measurement data to improve measurements performed by the XPS subsystem, and vice-versa. In addition, a combined XRR and XPS system enables simultaneous analysis of both XRR and XPS measurement data to more accurately estimate values of one of more parameters of interest. In a further aspect, any of measurement spot size, photon flux, beam shape, beam diameter, and illumination energy are independently controlled.

The invention discloses a hand-held line laser three-dimensional measuring system based on spatial wireless positioning, which comprises an indoor wireless positioning subsystem and a hand-held measuring subsystem, wherein the indoor wireless positioning subsystem comprises two CCD cameras and a line laser projector; the hand-held measuring subsystem comprises a computer, at least four signal transmitters and at least three receivers; the two CCD cameras and the line laser projector are packaged into a hand-held support; various signal transmitters are uniformly distributed on indoor ceiling; various receivers are uniformly arranged on the hand-held support; the world coordinate of the hand-held support is obtained by calculation of world coordinates of various receivers received by the computer; and the three-dimensional coordinate of the surface of a workpiece is obtained by processing of two laser stripe images shot by the two cameras. The invention is different from the conventional positioning concept and is not limited by a mechanical positioning device, so that the whole system has the advantages of simplicity, flexibility, large measuring space and the like. Moreover, the system is not limited by the freedom degree in a large work measurement space and can perform measurement at any place and is lightweight and portable.

Provided are a system and a method for quantum cryptography. The method includes generating the same quantum cryptography key in a transmitter and a receiver by measuring a composite-quantum-system made of a plurality of sub-quantum-systems in each of the transmitter and the receiver connected to each other through a quantum channel, wherein a part of the sub-quantum-systems is confined within the transmitter in order not to expose the entire composite-quantum-system to an outside of the transmitter and the composite-quantum-system cannot be determined without disturbing the composite-quantum-system at the outside of the transmitter.