Quantum Depth in the Random Oracle Model
Quantum Depth in the Random Oracle Model
复制标题
随机预言模型中的量子深度
DOI:
10.1145/3564246.3585153
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Waldner, Hendrik
中科院分区:
文献类型:
--
作者:
Arora, Atul Singh;Coladangelo, Andrea;Coudron, Matthew;Gheorghiu, Alexandru;Singh, Uttam;Waldner, Hendrik
We give a comprehensive characterisation of the computational power of shallow quantum circuits combined with classical computation. Specifically, for classes of search problems, we show that the following statements hold, relative to a random oracle:(a)BPPQNCBPP≠BQP. This refutes Jozsa’s conjecture in the random oracle model. As a result, this gives the first instantiatable separation between the classes by replacing the oracle with a cryptographic hash function, yielding a resolution to one of Aaronson’s ten semi-grand challenges in quantum computing.(b)BPPQNC⊈QNCBPPandQNCBPP⊈BPPQNC. This shows that there is a subtle interplay between classical computation and shallow quantum computation. In fact, for the second separation, we establish that, for some problems, the ability to perform adaptive measurements in a single shallow quantum circuit, is more useful than the ability to perform polynomially many shallow quantum circuits without adaptive measurements. We also show thatBPPQNCandBPPQNCare both strictly contained inBPPQNCBPP.(c) There exists a 2-message proof of quantum depth protocol. Such a protocol allows a classical verifier to efficiently certify that a prover must be performing a computation of some minimum quantum depth. Our proof of quantum depth can be instantiated using the recent proof of quantumness construction by Yamakawa and Zhandry.
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影响因子:
0.5
作者:
Peter Bro Miltersen
通讯作者:
Peter Bro Miltersen
DOI:
10.4230/lipics.itc.2021.22
发表时间:
2021
期刊:
2nd Conference on Information-Theoretic Cryptography (ITC 2021
影响因子:
--
作者:
Blocki, J;Lee, S;Zhou, S.
通讯作者:
Zhou, S.
DOI:
10.1007/978-3-030-26951-7_9
发表时间:
2019-08
期刊:
IACR Cryptol. ePrint Arch.
影响因子:
--
作者:
Mark Zhandry
通讯作者:
Mark Zhandry
DOI:
--
发表时间:
2022
期刊:
IEEE Annual Symposium on Foundations of Computer Science
影响因子:
--
作者:
Takashi Yamakawa;Mark Zhandry
通讯作者:
Mark Zhandry
DOI:
--
发表时间:
2020
期刊:
IACR Cryptology ePrint Archive
影响因子:
--
作者:
Kai;S. Fehr;Yu;Tai
通讯作者:
Tai