6 results about "Parametric oscillator" patented technology

The inventors have developed techniques to facilitate the operation of a quantum oscillator with increased bit-flip lifetimes by inducing an energetic asymmetry between qubit states. The technology may be used for the storage of quantum information or for providing a system for quantum information processing with longer bit flip lifetimes. The technology includes a qubit along with corresponding drives for controlling the energetic barrier and energetic asymmetry between the energetic potentials for each qubit state.

An information processing device includes a quantum calculation circuit and a controller. The quantum calculation circuit includes a quantum bit element using a parametric oscillator having Kerr nonlinearity. The controller includes a memory storing instructions; and one or more processors configured to execute the instructions to: initialize a quantum state of the quantum bit element in such a way as to indicate any one of binary values of the quantum bit using a coherent drive signal; and then control the quantum calculation circuit in such a way as to increase detuning of the quantum bit element.

The inventors have developed techniques to facilitate the operation of a quantum oscillator with increased bit-flip lifetimes by inducing an energetic asymmetry between qubit states. The technology may be used for the storage of quantum information or for providing a system for quantum information processing with longer bit flip lifetimes. The technology includes a qubit along with corresponding drives for controlling the energetic barrier and energetic asymmetry between the energetic potentials for each qubit state.

The application discloses a kind of based on four-wave mixing effect's ultrafast laser output's fiber parametric oscillator, belong to laser technology and laser control field.It includes: pump source, wavelength division multiplexer, gain optical fiber, optical isolator, photonic crystal fiber, reflective wavelength division multiplexer, optical path delay line, 1×2 optical fiber coupler, data collector, optical fiber coupling photoelectric detector.The application utilizes passive optical fiber, gain optical fiber, photonic crystal fiber and optical fiber device not only realizes the full fiber of laser, but also improves the environmental stability of laser.Through reflective wavelength division multiplexer, 900nm signal light is filtered out and returned to ring cavity parametric oscillation, and through optical path delay line, the overlapping part of signal light and pump light is adjusted, finally through 1×2 optical fiber coupler, stable 900nm tunable ultrafast laser output is realized.

To provide a processing device capable of achieving multiplexing of reading when oscillation frequencies of a plurality of Josephson parametric oscillators are the same.SOLUTION: And an identification processing unit configured to identify states of quantum bits of the plurality of Josephson parametric oscillators based on a comparison result of a real part and an imaginary part between a Fourier transform value of the signal output by the plurality of Josephson parametric oscillators and a calculated value obtained from a parameter of a pump signal input to the plurality of Josephson parametric oscillators.SELECTED DRAWING: Figure 7

When performing a solution search using a k-parametric oscillator, if candidate solutions have been obtained, these obtained candidate solutions should be incorporated into the solution search. [Solution] The information processing device comprises a quantum computing circuit and a control means, the quantum computing circuit comprises a qubit element using a parametric oscillator having Kerr nonlinearity, and the control means initializes the quantum state of the qubit element to show one of the two values ​​of the qubit using a coherent drive signal, and then controls the quantum computing circuit to increase the detuning of the qubit element.