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The DOI matches its Crossref record; 69 of the 69 references it cites were found in a registry or an index.

Chaos in quantum channels

Open access
Hosur, Pavan, Qi, Xiao-Liang, Roberts, Daniel A., Yoshida, Beni·2016·Journal of High Energy Physics

Abstract

We study chaos and scrambling in unitary channels by considering their entanglement properties as states. Using out-of-time-order correlation functions to diagnose chaos, we characterize the ability of a channel to process quantum information. We show that the generic decay of such correlators implies that any input subsystem must have near vanishing mutual information with almost all partitions of the output. Additionally, we propose the negativity of the tripartite information of the channel as a general diagnostic of scrambling. This measures the delocalization of information and is closely related to the decay of out-of-time-order correlators. We back up our results with numerics in two non-integrable models and analytic results in a perfect tensor network model of chaotic time evolution. These results show that the butterfly effect in quantum systems implies the information-theoretic definition of scrambling.

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Metadata

Authors
Hosur, P., Qi, X.-L., Roberts, D. A., & Yoshida, B.
Venue
Journal of High Energy Physics
Published
2016-02
Volume
2016
Issue
2
ISSN
1029-8479 (ISSN-L)
OpenAlex
W2247548592
Cited by
717
References
69
FWCI
36.83
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: Chaos in quantum channels. https://app.cochat.ai/papers/10.1007/jhep02(2016)004
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Hosur, P., Qi, X.-L., Roberts, D. A., & Yoshida, B. (2016). Chaos in quantum channels. Journal of High Energy Physics. https://doi.org/10.1007/jhep02(2016)004

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