Computational Entanglement Theory

Fuente: arXiv
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Auteurs principaux: Arnon, Rotem, Brakerski, Zvika, Vidick, Thomas
Format: Preprint
Publié: 2023
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author Arnon, Rotem
Brakerski, Zvika
Vidick, Thomas
author_facet Arnon, Rotem
Brakerski, Zvika
Vidick, Thomas
contents We initiate a rigorous study of computational entanglement theory, inspired by the emerging usefulness of ideas from quantum information theory in computational complexity. We define new operational computational measures of entanglement -- the computational one-shot entanglement cost and distillable entanglement. We then show that the computational measures are fundamentally different from their information-theoretic counterparts by presenting gaps between them. We proceed by refining and extending the definition of pseudo-entanglement, introduced by Aaronson et al., 2022, using the new operational measures; and we present constructions of pseudo-entangled states (for our new definition) based on post-quantum cryptographic assumptions. Finally, we discuss the relations between computational entanglement theory and other topics, such as quantum cryptography and notions of pseudoentropy, as well as the relevance of our new definitions to the study of the AdS/CFT correspondence. We believe that, in addition to the contributions presented in the current manuscript, our work opens multiple research directions, of relevance both to the theoretical quantum information theory community as well as for future applications of quantum networks and cryptography.
format Preprint
id arxiv_https___arxiv_org_abs_2310_02783
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Computational Entanglement Theory
Arnon, Rotem
Brakerski, Zvika
Vidick, Thomas
Quantum Physics
We initiate a rigorous study of computational entanglement theory, inspired by the emerging usefulness of ideas from quantum information theory in computational complexity. We define new operational computational measures of entanglement -- the computational one-shot entanglement cost and distillable entanglement. We then show that the computational measures are fundamentally different from their information-theoretic counterparts by presenting gaps between them. We proceed by refining and extending the definition of pseudo-entanglement, introduced by Aaronson et al., 2022, using the new operational measures; and we present constructions of pseudo-entangled states (for our new definition) based on post-quantum cryptographic assumptions. Finally, we discuss the relations between computational entanglement theory and other topics, such as quantum cryptography and notions of pseudoentropy, as well as the relevance of our new definitions to the study of the AdS/CFT correspondence. We believe that, in addition to the contributions presented in the current manuscript, our work opens multiple research directions, of relevance both to the theoretical quantum information theory community as well as for future applications of quantum networks and cryptography.
title Computational Entanglement Theory
topic Quantum Physics
url https://arxiv.org/abs/2310.02783