Measuring weighting factor of eigenstates in quantum superposition by classical mechanical 'quantum' computer

被引:0
|
作者
Itamiy, Teturo [1 ]
Matsui, Nobuyuki [1 ,2 ]
Isokawa, Teijiro [2 ]
Kouda, Noriaki [3 ]
Hashimoto, Takanori [4 ]
机构
[1] Univ Hyogo, Art Intelligence Ctr Res & Educ, Hyogo, Japan
[2] Univ Hyogo, Grad Sch Engn, Hyogo, Japan
[3] Natl Inst Technol, Matsue College, Grad Sch Engn, Matsue, Shimane, Japan
[4] Univ Hyogo, Dept Engn, Hyogo, Japan
来源
2020 59TH ANNUAL CONFERENCE OF THE SOCIETY OF INSTRUMENT AND CONTROL ENGINEERS OF JAPAN (SICE) | 2020年
基金
日本学术振兴会;
关键词
quantum computing; causal representation of quantum dynamics; Deutsch's algorithm;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
We design classical apparatuses to measure the weighting factor of eigenstates without breaking the quantum mechanical superposition state. The apparatuses work as "quantum" computer even though they follow classical physics. To do quantum computation, we need to know what percentage of a particular state is included in a superposed quantum state. However, we face difficulties that large-scale equipment, such as cryogenic temperature, is required to maintain the overlap. Combining causal formulation of quantum mechanics and mediocre classical mechanism overcomes the situation. The weighting coefficients of the superposition can be determined by monitoring the trajectory of a classical particle under quantum flucutation force. Such monitoring is possible only in macroscopic physics. Efficacy of our macroscopic apparatus model is shown in one of typical quantum algorithms, Deutsch algorithm. This classical mechanical design opens the way for "quantum mechanical" artificial intelligence to be mounted on robots in usual macroscopic world.
引用
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页码:445 / 450
页数:6
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