Published February 15, 2024 | Version Published
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Gap between holographic and quantum mechanical extreme rays of the subadditivity cone

Abstract

We show via explicit construction that for six or more parties, there exist extreme rays of the subadditivity cone that can be realized by quantum states, but not by holographic states. This is a counterexample to a conjecture first formulated in Hernández-Cuenca et al. [The holographic entropy cone from marginal independence, J. High Energy Phys. 09 (2022) 190.], and implies the existence of deep holographic constraints that restrict the allowed patterns of independence among various subsystems beyond the universal quantum mechanical restrictions.

Copyright and License

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Funding

Funded by SCOAP3.

Acknowledgement

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Additional details

Identifiers

ISSN
2470-0029

Funding

SCOAP3
Heising-Simons Foundation
2021-2817
United States Department of Energy
DE-SC0011632
Walter Burke Institute for Theoretical Physics
United States Department of Energy
DE-SC0009999
University of California System

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Caltech groups
Walter Burke Institute for Theoretical Physics