Semi-device-independent quantum money
Karol Horodecki , Maciej Stankiewicz
AbstractThe 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.
|Journal series||New Journal of Physics, ISSN 1367-2630, (N/A 140 pkt)|
|Publication size in sheets||1.35|
|Keywords in English||quantum money, semi device independent, Greshamʼs law, device independent|
|License||Journal (articles only); published final; ; with publication|
|Score||= 140.0, 20-05-2020, ArticleFromJournal|
|Publication indicators||: 2016 = 1.031; : 2018 = 3.773 (2) - 2018=3.626 (5)|
|Citation count*||3 (2020-04-28)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.