4.4 Article

Mixed-state entanglement for AdS Born-Infeld theory

Journal

JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 9, Pages -

Publisher

SPRINGER
DOI: 10.1007/JHEP09(2023)105

Keywords

Holography and Condensed Matter Physics (AdS/CMT); Black Holes; AdS-CFT Correspondence

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In this study, we investigate the mixed-state entanglement in AdS Born-Infeld (BI) theory and find that increasing the BI factor enhances the entanglement wedge cross-section (EWCS), which is crucial for constructing stable quantum circuits. Furthermore, we show the important role of the BI term in governing the interplay between nonlinear electromagnetic effects and entanglement.
We study the mixed-state entanglement for AdS Born-Infeld (BI) theory. We calculate the mixed-state entanglement and investigate the relationship between it and the system parameters. We find that the holographic entanglement entropy (HEE) and mutual information (MI) exhibit monotonically increasing and decreasing behavior with BI factor b. However, the entanglement wedge cross-section (EWCS) exhibits a very rich set of phenomena about system parameters. EWCS always increases with b when b is small and then monotonically decreases with b. These behaviors suggest that increasing the BI factor, which is essentially enhancing the coupling between the background geometry and the transport properties can always enhance the EWCS. The coupling between the entanglement and the transport behaviors has also been studied in condensed matter theories and is important to construct a stable quantum circuit. We also provide analytical understanding of the above phenomenon. Furthermore, we have tested two additional BI-like models and find the universality of these results, suggesting the crucial role of the BI term in governing the interplay between nonlinear electromagnetic effects and entanglement.

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