Corpus ID: 236134148

# Shaping contours of entanglement islands in BCFT

@inproceedings{Ageev2021ShapingCO,
title={Shaping contours of entanglement islands in BCFT},
author={Dmitry S. Ageev},
year={2021}
}
In this paper, we study the fine structure of entanglement in holographic two-dimensional boundary conformal field theories (BCFT) in terms of the spatially resolved quasilocal extension of entanglement entropy entanglement contour. We find that the boundary induces discontinuities in the contour revealing hidden localizationdelocalization patterns of entanglement degrees of freedom. Moreover, we observe the formation of “islands” where the entanglement contour vanishes identically implying… Expand
3 Citations

#### Figures from this paper

First Law and Quantum Correction for Holographic Entanglement Contour
• Physics
• 2021
Entanglement entropy satisfies a first law-like relation, which equates the first order perturbation of the entanglement entropy for the region A to the first order perturbation of the expectationExpand
A Note on Islands in Schwarzschild Black Holes
• Physics
• 2021
We consider evaporation of the Schwarzschild black hole and note that island configurations do not provide a bounded entanglement entropy. The same remark is valid also for some other static blackExpand
The Spectrum of Boundary States in Symmetric Orbifolds
We give an explicit construction of the complete set of Cardy boundary states that respect the extended chiral algebra for symmetric product orbifolds. The states are labelled by a choice of seedExpand

#### References

SHOWING 1-10 OF 47 REFERENCES
Holographic entanglement contour, bit threads, and the entanglement tsunami
• Physics
• 2019
We study the entanglement contour, a quasi-local measure of entanglement, and propose a generic formula for the contour in 1+1d quantum systems. We use this formalism to investigate the real spaceExpand
Entanglement contour
• Physics
• 2014
In the context of characterizing the structure of quantum entanglement in many-body systems, we introduce the entanglement contour, a tool to identify which real-space degrees of freedom contribute,Expand
On the entanglement contour of excited states in the holographic CFT
In this paper, we study the entanglement contour in a general excited state in the holographic 2d CFT using the partial entanglement entropy proposal. We show how thermodynamics fixes theExpand
A covariant holographic entanglement entropy proposal
• Physics
• 2007
With an aim towards understanding the time-dependence of entanglement entropy in generic quantum field theories, we propose a covariant generalization of the holographic entanglement entropy proposalExpand
Entanglement tsunami: universal scaling in holographic thermalization.
• Medicine, Physics
• Physical review letters
• 2014
We consider the time evolution of entanglement entropy after a global quench in a strongly coupled holographic system, whose subsequent equilibration is described in the gravity dual by theExpand
Entanglement Wedge Reconstruction and the Information Paradox
When absorbing boundary conditions are used to evaporate a black hole in AdS/CFT, we show that there is a phase transition in the location of the quantum Ryu-Takayanagi surface, at precisely the PageExpand
Entanglement contour from subset entanglement entropies
Entanglement contour characterizes the spatial structure of entanglement and quantifies the contribution from the degrees of freedom in any subset of the region $\mathcal{A}$ to the totalExpand
First Law and Quantum Correction for Holographic Entanglement Contour
• Physics
• 2021
Entanglement entropy satisfies a first law-like relation, which equates the first order perturbation of the entanglement entropy for the region A to the first order perturbation of the expectationExpand
The negativity contour: a quasi-local measure of entanglement for mixed states
• Physics
• 2019
In this paper, we study the entanglement structure of mixed states in quantum many-body systems using the $\textit{negativity contour}$, a local measure of entanglement that determines whichExpand
Entanglement hamiltonian and entanglement contour in inhomogeneous 1D critical systems
• Physics
• 2017
Inhomogeneous quantum critical systems in one spatial dimension have been studied by using conformal field theory in static curved backgrounds. Two interesting examples are the free fermion gas inExpand