Classical Proofs of Quantum Knowledge
Classical Proofs of Quantum Knowledge
复制标题
量子知识的经典证明
DOI:
10.1007/978-3-030-77886-6_22
复制
发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Tina Zhang
中科院分区:
文献类型:
--
作者:
Thomas Vidick;Tina Zhang
We define the notion of a proof of knowledge in the setting where the verifier is classical, but the prover is quantum, and where the witness that the prover holds is in general a quantum state. We establish simple properties of our definition, including that nondestructive classical proofs of quantum knowledge are impossible for nontrivial states, and that, under certain conditions on the parameters in our definition, a proof of knowledge protocol for a hard-to-clone state can be used as a (destructive) quantum money verification protocol. In addition, we provide two examples of protocols (both inspired by private-key classical verification protocols for quantum money schemes) which we can show to be proofs of quantum knowledge under our definition. In so doing, we introduce new techniques for the analysis of such protocols which build on results from the literature on nonlocal games. Finally, we show that, under our definition, the verification protocol introduced by Mahadev (FOCS 2018) is a classical argument of quantum knowledge for QMA relations.
DOI:
10.22331/q-2021-09-16-544
发表时间:
2020-01
期刊:
--
影响因子:
--
作者:
Tony Metger;Thomas Vidick
通讯作者:
Tony Metger;Thomas Vidick