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Open Quantum Systems Decoherence

A Bit Rate Bound on Superluminal Communication

arXiv
Authors: Xi Tong, Yi Wang, Yuhang Zhu

Year

2020

Paper ID

18236

Status

Preprint

Abstract Read

~2 min

Abstract Words

94

Citations

N/A

Abstract

We study semi-classical communication in positivity-violating k-essence scalar field theories, with superluminal modes propagating on a rolling background. The self-interactions due to the non-linear nature of these theories pose a constraint on the rate of superluminal information transfer. We derive a novel bit rate bound on superluminal communication within a conceptual model, to which a general class of k-essence theories naturally reduces. Our result implies the possibility that, even if these positivity-violating k-essence theories may not possess a maximal information propagation speed, there is nevertheless an upper bound on the rate of information transfer.

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  • This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
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  • We study semi-classical communication in positivity-violating k-essence scalar field theories, with superluminal modes propagating on a rolling background.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2012.11278 [2] arXiv https://arxiv.org/abs/2012.11278 [3] Publisher https://arxiv.org/abs/2012.11278

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