Utility of NISQ devices: optimizing experimental parameters for the fabrication of Au atomic junction using gate-based quantum computers

Feedback-controlled electromigration (FCE) enables precise regulation of atomic migration by carefully optimizing multiple experimental parameters. However, manually fine-tuning these parameters poses significant challenges. This study investigated the feasibility of autonomously fabricating Au atom...

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Vydáno v:	Applied physics express Ročník 18; číslo 4; s. 47001 - 47006
Hlavní autoři:	Kanezashi, Takumi, Tsukayama, Daisuke, Shirakashi, Jun-ichi, Shibuya, Tetsuo, Imai, Hiroshi
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	IOP Publishing 01.04.2025
Témata:	combinatorial optimization problems feedback-controlled electromigration gate-based quantum computer variational quantum eigensolver
ISSN:	1882-0778, 1882-0786
On-line přístup:	Získat plný text
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Popis
Shrnutí:	Feedback-controlled electromigration (FCE) enables precise regulation of atomic migration by carefully optimizing multiple experimental parameters. However, manually fine-tuning these parameters poses significant challenges. This study investigated the feasibility of autonomously fabricating Au atomic junctions through gate-based quantum computing using a noisy intermediate-scale quantum (NISQ) device, which effectively approximates solutions to combinatorial optimization problems. We compared the computational accuracy of the NISQ device against a previously reported D-Wave quantum annealer. The results indicate that the NISQ device achieved lower residual energies and produced higher-quality approximate solutions for large-scale problems than the quantum annealing system.
Bibliografie:	APEX-108361.R1
ISSN:	1882-0778 1882-0786
DOI:	10.35848/1882-0786/adc5da