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Questions tagged [quantum-money]

Use for questions about money whose security is based on aspects of the No-Cloning Theorem.

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Do we have to trust the bank in “Quantum Money from Hidden Subspaces?”

What level of trust in the bank is needed in "Quantum Money from Hidden Subspaces" of Aaronson and Christiano? The bank's mint works by first generating a uniformly random classical secret string $...
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Can a merchant who accepts a knot-based quantum coin mint her own knot-based coin?

Referring to Farhi, Gosset, Hassidim, Lutomirski, and Shor's "Quantum Money from Knots," a mint $\mathcal{M}$ generates a run of coins, including, say, $(s,|\$\rangle)$, using a quantum computer to ...
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Can quantum money be reliably “burned?”

One of the novel features of Bitcoin and other cryptocurrencies is that coins can be irrefutably "burned" or destroyed, by creating a transaction to send the money to a junk burn address. Thinking ...
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Rigorous security proof for Wiesner's quantum money

In his celebrated paper "Conjugate Coding" (written around 1970), Stephen Wiesner proposed a scheme for quantum money that is unconditionally impossible to counterfeit, assuming that the issuing bank ...
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Quantum Bitcoin Subdivision

Background Recently I was reading the article "Quantum Bitcoin: An Anonymous and Distributed Currency Secured by the No-Cloning Theorem of Quantum Mechanics" which demonstrates how a quantum bitcoin ...