Semi-device-independent quantum money

Karol Horodecki , Maciej Stankiewicz


The seminal idea of quantummoney, not forgeable due to laws of Quantum Mechanics, proposed by Stephen Wiesner, has laid the foundations for the Quantum Information Theory in the early ’70s. Recently, several other schemes for quantum currencies have been proposed, all, however, relying on the assumption that the quantum source device, acts according to its specification. This makes several known quantum money protocols vulnerable to the so-called hardware Trojan horse attacks. We, therefore, study the following problem: to what extent quantum money schemes can be made independent from the inner working of source and verification-devices used by the honest parties (bank and mint) in creating and processing the quantum money?Drawing inspirations fromthe semi-device-independent quantum key distribution protocol, we introduce the first scheme of quantum money with this assumption partially relaxed, along with the proof of its unforgeability. Finally, we formulate and discuss a quantum analog of the Oresme–Copernicus–Gresham’s law of economy, that may hold in the future.
Author Karol Horodecki (ICTQT | II)
Karol Horodecki,,
- International Centre for Theory of Quantum Technologies
, Maciej Stankiewicz (FMPI / IM)
Maciej Stankiewicz,,
- Institute of Mathematics
Journal seriesNew Journal of Physics, ISSN 1367-2630, (N/A 140 pkt)
Issue year2020
Publication size in sheets1.35
Article number023007
Keywords in Englishquantum money, semi device independent, Greshamʼs law, device independent
ASJC Classification3100 General Physics and Astronomy
Languageen angielski
LicenseJournal (articles only); published final; Uznanie Autorstwa (CC-BY); with publication
Score (nominal)140
Score sourcejournalList
ScoreMinisterial score = 140.0, 20-05-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.031; WoS Impact Factor: 2018 = 3.773 (2) - 2018=3.626 (5)
Citation count*3 (2020-04-28)
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