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JP6483643B2 |
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JP6479067B2 |
An optical system comprising a charged quantum dot having, a charged carrier, first and second ground state levels and a plurality of excited state levels, the first and second ground state energy levels having different spin states such...
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JP6429346B2 |
In an Ising spin measuring step, measurement is suspended after one set of measurements of all Ising spins {Ã i } is completed before another set of measurements of all Ising spins {Ã i } is restarted. In an Ising interaction computing...
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JP6426527B2 |
To reduce heat generated by reception of signal light.A semiconductor light reception detection circuit F1 comprises a light reception detection part g1 made of a semiconductor which absorbs and converts at least part of signal light mad...
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JP6419889B2 |
A photon source comprising a quantum structure capable of defining one or more quantum levels such that a photon may be emitted from the quantum structure due to a transition between at least two quantum levels, a control signal configur...
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JP6395224B2 |
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JP2018513452A |
Some aspects relate to a method of manipulating a device containing a first quantum system with multiple coherent quantum states, the first quantum system being coupled to a second quantum system, the method being the first. The process ...
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JP6300049B2 |
In one aspect, a computational machine includes an optical device configured to receive energy from an optical energy source and generate a number N1 of optical signals, and a number N2 of coupling devices, each of which controllably cou...
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JP6287152B2 |
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JP6277701B2 |
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JP6272818B2 |
An optical device comprising: a photonic crystal structure, comprising: a layer of a first material, the layer comprising a quantum emitter; and a plurality of regions of a second material in the layer of the first material, the regions ...
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JP6260896B2 |
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JP6255087B2 |
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JP6251156B2 |
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JP6229228B2 |
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JP6223838B2 |
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JP2017167489A |
To maximize the fidelity of quantum entanglement in accordance with the characteristic of a photon count detector used in measurement.A quantum entanglement generation device of the present invention comprises: a first light source unit ...
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JP2017161646A |
To provide a quantum entanglement generation method capable of easily adjusting an optical path length and capable of easily controlling the entering timing light quantum into a Bell analyzer.The quantum entanglement generation method us...
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JP2017156689A |
To provide a resonator capable of making a mode waist of a resonator mode small.A resonator related to one embodiment comprises: a medium including a physical system; and a first mirror and a second mirror facing each other and being att...
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JP6172652B2 |
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JP2017520791A |
An optical device (1) with a planar waveguide (12) and a quantum emitter (18) is presented. The planar waveguide (2) comprises a longitudinally extending induction region (4) with a first side (6) and a second side (8). The first nanostr...
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JP6143325B2 |
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JP6123891B2 |
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JP6115189B2 |
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JP6100846B2 |
An interference system, comprising: an interference apparatus, configured such that input light pulses interfere at an interference component; wherein the input of said interference apparatus is provided by a phase-randomised light sourc...
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JP2017053989A |
To increase the number of available quantum bits.A quantum computer comprises a plurality of physical systems and a light source unit. The plurality of physical systems disposed in a resonator, have three or more levels including two lev...
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JP6097122B2 |
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JP2017049309A |
To provide a phase adjustment element that makes miniaturization possible, an optical signal input port structure using the same, and an optical logic circuit.The phase adjustment element comprises: a rectangular interference waveguide r...
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JP6057373B2 |
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JP6029048B2 |
There are provided a quantum dot, a plurality of quantum dots having a larger volume than the quantum dot, a light detection unit for detecting a light emission state of an output light from the plurality of quantum dots, and a light sup...
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JP6029072B2 |
To provide a degenerated optical parametric oscillator that does not require a device in which there are optical elements capable of handling two very different wavelengths.An optical parametric oscillator includes: two pump light source...
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JP5963869B2 |
A device and a method for synchronizing entanglement sources with optical pump in a quantum communication network are disclosed. The device includes a pulsed optical source allowing emission of telecom wavelength optical clock pulses dis...
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JP5944846B2 |
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JP5944844B2 |
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JP5944847B2 |
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JP5944849B2 |
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JP5944845B2 |
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JP5944848B2 |
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JP2016099595A |
To provide a three-terminal optical signal control element having a sandwich-type configuration formed by connecting two semiconductor optical amplifiers by an AWG (Arrayed Waveguide Grating) optical filter and capable of providing wavel...
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JP2016061872A |
To provide a relatively compact optical logic circuit that does not require a complicated operation.The present invention is an optical logic circuit having a multi-mode interferometer 1, wherein the optical logic circuit includes: at le...
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JP2016014858A |
To provide a photon source comprising a quantum structure capable of defining one or more quantum levels such that a photon may be emitted from the quantum structure because of a transition between at least two quantum levels.An embodime...
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JP5753543B2 |
An entangled photon pair source including: a quantum emitter having a ground state, two degenerate states that have one elementary excitation and different spins, and a state having two elementary excitations; a first optical cavity, whe...
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JP2015118380A |
To provide optical switches, and logic gates using the optical switches.An optical switch includes: a light passageway having changeable cross-sectional area; an activation light responsive piezoelectric element associated with the light...
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JP5721427B2 |
An optical switch including a light passageway having a changeable cross-sectional area, an activation light responsive piezoelectric element associated with the light passageway, the activation light responsive piezoelectric element bei...
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JP5694407B2 |
An optical device comprising a quantum dot provided in a resonant confinement structure, an output from said confinement structure and a pulsed excitation source for said quantum dot, wherein the quantum dot is configured to allow the em...
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JP5686347B2 |
There is provided a bistable element in which not only can miniaturization be further carried out in comparison with a conventional bistable element, but also it is possible to obtain a further wide bistable hysteresis window. The bistab...
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JP2015036781A |
To provide a quantum teleportation optical circuit, stably operating, portable, and free from alignment.Two pieces of squeezed light from two squeezed light sources and laser beams coherent with two pieces of the squeezed light are intro...
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JP5669069B2 |
To generate a plurality of quantum bits in desired entanglement states while suppressing influence of loss, using a probabilistic gate.A method includes performing X measurement of one quantum bit contained in a first quantum bit set con...
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JP2015021978A |
To enable movement operation of any level occupancy between two quantum levels in a communication wavelength band.A population trapping is combined with two stimulated Raman adiabatic passages by radiating first pulse laser light 101 tha...
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JP5642960B2 |
Apparatus and methods for implementing logical operations using polarization-based logic level representation is provided. An apparatus and method split an input polarized beam into first and second beams having an identical or nearly id...
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