2022 Fiscal Year Final Research Report
Demonstration of a continuous-variable quantum algorithm on a photonic quantum computer
Project/Area Number |
20H01833
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Review Section |
Basic Section 13020:Semiconductors, optical properties of condensed matter and atomic physics-related
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Research Institution | The University of Tokyo |
Principal Investigator |
Shuntaro Takeda 東京大学, 大学院工学系研究科(工学部), 准教授 (80737304)
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Keywords | 量子光学 / 量子情報 / 量子コンピュータ / 連続量量子情報処理 / 量子アルゴリズム |
Outline of Final Research Achievements |
In recent years, progress has been made in optical quantum computers based on continuous-variable schemes that deal with continuous values, rather than qubit schemes that deal with 0s and 1s. Although the current continuous-variable optical quantum computers are still small-scale and noisy, they can be applied to practical problems if they are utilized properly. Here, we implemented and demonstrated a quantum algorithm for minimizing continuous functions using a small-scale continuous-variable optical quantum computer.
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Free Research Field |
量子光学
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Academic Significance and Societal Importance of the Research Achievements |
従来、量子コンピュータを実用的な問題に適用して社会の役に立たせるためには、非常に大規模かつエラーの低いデバイスが実現できる必要があると考えられており、その実現にはかなりの年月が必要と考えられてきた。本研究では、小規模でエラーが多い光量子コンピュータが意味のある計算に適用できることを示し、光量子コンピュータの近未来応用の可能性を示唆する結果となった。
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