JP7440795B2 - Xyモデルの計算装置および組合せ最適化問題計算装置 - Google Patents
Xyモデルの計算装置および組合せ最適化問題計算装置 Download PDFInfo
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Description
DOPO(Degenerate Optical Parametric Oscillator)スパイキングニューロン装置におけるフィードバック信号を記述する結合行列Jijを後述の(式10)で与えられるものに設定がされる。
装置の発火状態をうまく制御するために、フィードバック信号(式13)を入力することで、計算精度が格段に向上する方法を説明する。フィードバック信号以外は、実施形態1と同様の装置を用いることができる。
Claims (5)
- 複数の光パルスを増幅するための共振器部と、
該複数の光パルスの位相および振幅を測定して測定結果を得る測定部と、
該測定結果に基づいてある光パルスにかかわる相互作用をイジングモデルの結合係数を用いて演算してフィードバックするフィードバック構成と、
を備え、
前記フィードバック構成は、前記複数の光パルスのうちの2つの光パルスの結合係数で決まる相関関係をフィードバック入力するように構成され、かつ、
前記イジングモデルの前記結合係数は、前記2つの光パルスの振幅を軸とする平面上の偏角として与えられる実数θを用いて記述されることを特徴とするXYモデルの計算装置。 - 前記光パルスの成分は、同相成分であることを特徴とする請求項1に記載のXYモデルの計算装置。
- XYモデルのハミルトニアンの式(1)において、
- 請求項1乃至4いずれか一項に記載のXYモデルの計算装置を適用した組合せ最適化問題計算装置。
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PCT/JP2020/009006 WO2021176577A1 (ja) | 2020-03-03 | 2020-03-03 | Xyモデルの計算装置および組合せ最適化問題計算装置 |
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JP7440795B2 true JP7440795B2 (ja) | 2024-02-29 |
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Citations (1)
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WO2019078355A1 (ja) | 2017-10-19 | 2019-04-25 | 日本電信電話株式会社 | ポッツモデルの計算装置 |
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WO2019078355A1 (ja) | 2017-10-19 | 2019-04-25 | 日本電信電話株式会社 | ポッツモデルの計算装置 |
Non-Patent Citations (2)
Title |
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TAKEDA, Y et al.,"Boltzmann sampling for an XY model using a non-degenerate optical parametric oscillator network",Quantum Science and Technology [online],Vol. 3, No. 1,2017年,pp. 1-11,[retrieved on 2020.07.17], Retrieved from the Internet: <URL: https://iopscience.iop.org/article/10.1088/2058-9565/aa923b/meta>,<DOI: 10.1088/2058-9565/aa923b> |
YAMAMOTO, Y et al.,"Coherent Ising machines - optical neural networks operating at the quantum limit",npj Quantum Information [online],Vol. 3, Article Number: 49,2017年,pp. 1-15,[retrieved on 2020.07.17], Retrieved from the Internet: <URL: https://www.nature.com/articles/s41534-017-0048-9>,<DOI: 10.1038/s41534-017-0048-9> |
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WO2021176577A1 (ja) | 2021-09-10 |
JPWO2021176577A1 (ja) | 2021-09-10 |
US20230102145A1 (en) | 2023-03-30 |
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