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arXiv · 1709.05882

Experimental preparation and verification of quantum money

Jian-Yu Guan·Juan Miguel Arrazola·Ryan Amiri·Weijun Zhang·Hao Li·Lixing You·Zhen Wang·Qiang Zhang·Jian-Wei Pan
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Abstract

A quantum money scheme enables a trusted bank to provide untrusted users with verifiable quantum banknotes that cannot be forged. In this work, we report an experimental demonstration of the preparation and verification of unforgeable quantum banknotes. We employ a security analysis that takes experimental imperfections fully into account. We measure a total of $3.6\times 10^6$ states in one verification round, limiting the forging probability to $10^{-7}$ based on the security analysis. Our results demonstrate the feasibility of preparing and verifying quantum banknotes using currently available experimental techniques.

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Jian-Yu Guan, Juan Miguel Arrazola, Ryan Amiri, Weijun Zhang, Hao Li, Lixing You, Zhen Wang, Qiang Zhang, Jian-Wei Pan. 2017-09-18. Experimental preparation and verification of quantum money. https://doi.org/10.1103/physreva.97.032338

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