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7426444 Methods for determining relative phase differences in entangled quantum states  
Various embodiments of the present invention are directed to methods for determining a phase shift acquired by an entangled N-qubit system represented by a NOON state. In one embodiment, a probe...
7423793 Method and apparatus for decoding digital signal  
A method for decoding a digital signal includes receiving a multiple-bit digital signal that includes information to be transmitted; arraying bit strings of the received multiple-bit digital signal...
7421414 Split machine learning systems  
Split machine learning systems can be used to generate an output for an input. When the input is received, a determination is made as to whether the input is within a first, second, or third range...
7411807 System and method for optically interconnecting memory devices  
A memory device includes a semiconductor substrate in which memory circuitry has been fabricated. An address converter and a control signal converter are coupled to an address decoder and control...
7359928 Hardware quantum gate  
A hardware quantum gate for running quantum algorithms in a very fast manner exploits the fact that a large number of multiplications required by an entanglement operation of the quantum algorithm...
7359101 Tests of quantum information  
Quantum testing can compare unknown photon states in a manner suitable for a validation check of a quantum digital signature, testing of the operation of a quantum gate, or detecting of...
7355769 Method and apparatus for single-photon source and quantum memory  
An optical switch and optical storage loop are used as the basis of a single-photon source and a quantum memory for photonic qubits. To operate as a single-photon source, the techniques include a...
7334008 Quantum gate for carrying out a grover's quantum algorithm and a relative method of performing the interference operation of a grover's quantum algorithm  
A quantum gate for running a Grover's quantum algorithm using a binary function having a vector basis of n qubits is provided. The quantum gate includes a superposition subsystem, an entanglement...
7332560 Thermoplastic molding compositions having reduced water absorption  
A thermoplastic molding composition comprising polycarbonate and at least one (co)polyformal is disclosed. Characterized by its low water absorption the composition is particularly suitable for...
7289347 System and method for optically interconnecting memory devices  
A memory device includes a semiconductor substrate in which memory circuitry has been fabricated. An address converter and a control signal converter are coupled to an address decoder and control...
7232989 Transverse optical accelerator and generalized optical vortices  
A method and system for generating modulated optical vortices. Optical vortices can be used for a variety of applications, such as applying controlled torque or controlled force patterns to objects...
7218430 Combinatorial optical processor  
A Combinatorial Optical Processor and method for the architecture of optical systems utilizes one or more optical modules, each module including a number of individually addressable optical...
7203715 Method and relative quantum gate for running a Grover's or a Deutsch-Jozsa's quantum algorithm  
A method of performing a Grover's or a Deutsch-Jozsa's quantum algorithm being input with a binary function defined on a space having a basis of vectors of n of qubits includes carrying out a...
7200024 System and method for optically interconnecting memory devices  
A memory device includes a semiconductor substrate in which memory circuitry has been fabricated. An address converter and a control signal converter are coupled to an address decoder and control...
7180645 Quantum-state-generating apparatus, Bell measurement apparatus, quantum gate apparatus, and method for evaluating fidelity of quantum gate  
An apparatus for generating a quantum state of a two-qubit system including two qubits, each qubit being represented by a particle which invariably travels through one of two paths, includes a...
7164955 Method for online characterization of a moving surface and device therefor  
The process for the on-line characterization of a surface in motion, preferably a galvannealed sheet, essentially comprises an industrial microscope associated with a stroboscopic laser...
7133173 Nonlinear electromagnetic quantum information processing  
Nonlinear electromagnetic elements can efficiently implement quantum information processing tasks such as controlled phase shifts, non-demolition state detection, quantum subspace projections,...
7130093 Optical implementation of bounded non-deterministic Turing Machines  
Method and an optical computation device for obtaining an indication about the existence of a feasible solution for a bounded instance of a problem that belongs to the non-deterministic polynomial...
7126731 Optical latch based on lasing semiconductor optical amplifiers  
An optical latch based on a lasing semiconductor optical amplifier is disclosed. The optical latch is configured to achieve one or more stable states in response to the input of predetermined...
7126106 Quantum computer and quantum computation method  
Quantum computer includes optical systems arranged in series each of the plurality of optical systems includes first half-wave plate, first polarizing beam splitter, first switching mirror, first...
7085029 Dynamic phase logic gate  
A logic device for use with data signals having a continuously or semi-continuously varying waveform of substantially fixed frequency. The device provides a logical output from at least one of the...
7081979 Bit differential processing  
There is provided an apparatus for processing a segment of x optical bit slots from a packet comprising y optical bit slots, each bit slot defining a respective one of first and second...
7069282 Method of performing the superposition operation of a Grover's or a Deutsch-Jozsa's quantum algorithm and a relative quantum gate  
A quantum gate performs the superposition operation of a Grover's or of a Deutsch-Jozsa's quantum algorithm in a very fast manner. This is done by performing all multiplications by using logic...
7053359 Optical multi-gate device and method  
A logical element including an optical junction coupled to at least two optical inlets and to at least one optical outlet. Incoming light beams of coherent monochromatic light beams and the same...
7019875 Method and apparatus for single-photon source and quantum memory  
An optical switch and optical storage loop are used as the basis of a single-photon source and a quantum memory for photonic qubits. To operate as a single-photon source, the techniques include a...
7006267 Techniques for high fidelity quantum teleportation and computing  
Techniques for high fidelity quantum teleportation include receiving an input photon representing a qubit. Ancilla photons are generated in a particular ancilla quantum state chosen to reduce a...
6995404 Techniques for quantum processing with photons and the zeno effect  
Techniques are provided that use the quantum Zeno effect to implement practical devices that use single photons as the qubits for quantum information processing. In the quantum Zeno effect, a...
6963677 Optical memory and logic using cross-switches  
An all-optical, asynchronous binary storage cell implemented by optically induced total internal reflection cross-junction waveguide switches. The term “all-optical” refers to directing of...
6859576 Optical cross-connect system  
An optical cross-connect system is disclosed that use reduces the number of AWGs (Arrayed-Waveguide Grating) as compared to prior art systems so that the hardware complexity is reduced while...
6853765 MEMS optical switch with thermal actuator  
A MEMS type optical switch includes a substrate, the substrate including at least one groove formed therein; first and second optical fibers disposed in the at least one groove, the at least one...
6844950 Microstructure-bearing articles of high refractive index  
Blends of oligomeric urethane multi(meth)acrylate; optionally at least one other monomer selected from the group consisting of acrylic monomers, styrenic monomers and ethylenically unsaturated...
6834135 Optical switching system  
An optical switching system that switches the output port of an optical signal as indicated by address information (a label) that is contained in optical data packets constituting the optical...
6832014 Backplane wire and noise eliminator tube  
An optical switch for switching data in a network. The switch includes a housing. The switch includes a transmitter receiver means which transmits to or receives from the network the data. The...
6804433 Optical pulse pattern generator  
An optical pulse pattern generator can generate optical pulse signals with various periods and patterns. It supplies an optical pulse from an optical pulse source to a variable optical delay line...
6804047 All-optical or gate embodied by using semiconductor optical amplifiers  
The present invention is related to an all-optical OR device embodied by using the gain saturation and wavelength conversion characteristics of semiconductor optical amplifier (SOA), and more...
6788840 Bi-stable micro-actuator and optical switch  
A bi-stable micro-actuator is formed from a first and a second silicon-on-insulator wafer fused together at an electrical contact layer. A cover with a V-groove defines an optical axis. A...
6778303 N-valued optical logic architecture and method  
An architecture for optical logic gates is presented in which N predetermined wavelengths of light are used to define data. This data is manipulated by N-valued optical logic gates based on a set...
6760136 Method and apparatus for configuring quantum mechanical state, and communication method and apparatus using the same  
If a quantum mechanical state including a plurality of two-level systems (x 1 , x 2 , . . . , x 2p+1 ) is expressed by a superposition of orthonormal bases in which each two-level system assumes a...
6741374 Techniques for performing logic operations using quantum states of single photons  
A method and apparatus for performing logic operations using quantum polarization states of single photons, include a first polarizing beam splitter having first input spatial modes and first...
6693732 Optical sampler based on stable, non-absorbing optical hard limiters  
An optical sampler based on stable, non-absorbing optical hard limiters includes an optical feedback loop for storing an optical signal in optical form. The optical feedback loop includes...
6643040 Optical signal converter from RZ format to NRZ format  
The present invention is a device for converting an RZ signal into a NRZ signal which contains an optical bistable device ( 5 ), where an output level of this device passing from a low level to a...
6636337 Optical switching device based on stable, non-absorbing optical hard limiters  
An optical switching device based on stable, non-absorbing optical hard limiters optically switches optical information from an input to a number of outputs based upon address information contained...
6560386 Tunable optical add/drop multiplexer  
Optical signal devices, wavelength division multiplexer/demultiplexer optical devices, and methods of employing the same in which the core layer includes a grating and is comprised of a material...
6542283 Gyricon displays utilizing magnetic elements and magnetic trapping  
A sheet material for use in a gyricon display in which a rotatable element, which has a portion which is capable of being permanently magnetized may be oriented to experience either an attractive...
6525848 Switchable interleaved optical channel separator and isolator device and optical systems utilizing same  
The present invention provides an improved switchable interleaved channel separator device. The switchable interleaved channel separator device utilizes a reflective interferometer and one...
6437887 Optical logic device and optical memory device  
An optical logic device comprises a dielectric block arranged such that a driving light is incident on one plane thereof at a total reflection critical angle through an interior thereof, a metallic...
6424438 Apparatus and method for realizing all-optical NOR logic device  
An apparatus and method for realizing an all-optical NOR logic device includes a distributed feedback laser diode and a tunable laser diode respectively generating two pump signals of different...
6369921 Parity determining apparatus and method  
A parity determining circuit is used to determine the parity of a binary word. The binary word is represented by a sequence of optical bit slots. Each bit slot defines a respective one of two...
6301029 Method and apparatus for configuring quantum mechanical state, and communication method and apparatus using the same  
If a quantum mechanical state including a plurality of two-level systems (X 1 , X 2 , . . . , X 2p +1) is expressed by a superposition of orthonormal bases in which each two-level system assumes a...
6292280 Optical device and a method of processing a digital optical signal in parallel and in free space  
An optical device is provided for processing a digital optical signal in parallel and in free space. A device consistent with the invention provides for inputting a digital optical signal in guided...
Matches 1 - 50 out of 234 1 2 3 4 5 >