A Note on Publicly Verifiable Quantum Money with Low Quantum Computational Resources

TL;DR

This paper introduces a publicly verifiable quantum money protocol that requires minimal quantum resources, utilizing one-time memories and conjugate coding to prevent double spending and enable digital signatures.

Contribution

It presents a novel quantum money scheme with low quantum computational requirements based on one-time memories and conjugate coding, with practical implementation details.

Findings

Supports limited verifications and digital signatures.

Prevents double spending via no-cloning principle.

Provides a practical implementation at the given URL.

Abstract

In this work we present a publicly verifiable quantum money protocol which assumes close to no quantum computational capabilities. We rely on one-time memories which in turn can be built from quantum conjugate coding and hardware-based assumptions. Specifically, our scheme allows for a limited number of verifications and also allows for quantum tokens for digital signatures. Double spending is prevented by the no-cloning principle of conjugate coding states. An implementation of the concepts presented in this work can be found at https://github.com/neverlocal/otm_billz.