Shaping contours of entanglement islands in BCFT
arXiv:2107.09083 · doi:10.1007/JHEP03(2022)033
Abstract
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 localization-delocalization patterns of entanglement degrees of freedom. Moreover, we observe the formation of ``islands'' where the entanglement contour vanishes identically implying that these regions do not contribute to the entanglement at all. We argue that these phenomena are the manifestation of entanglement islands discussed recently in the literature. We apply the entanglement contour proposal to the recently proposed BCFT black hole models reproducing the Page curve - moving mirror model and the pair of BCFT in the thermofield double state. From the viewpoint of entanglement contour, the Page curve also carries the imprint of strong delocalization caused by dynamical entanglement islands.
arXiv comment19 pages, 6 figures
References in corpus (42)
- Holographic Derivation of Entanglement Entropy from AdS/CFT
- A Covariant Holographic Entanglement Entropy Proposal
- Average Entropy of a Subsystem
- Black Holes: Complementarity or Firewalls?
- Information in Black Hole Radiation
- Replica Wormholes and the Entropy of Hawking Radiation
- The fuzzball proposal for black holes: an elementary review
- The entropy of bulk quantum fields and the entanglement wedge of an evaporating black hole
- The Page curve of Hawking radiation from semiclassical geometry
- Time Evolution of Entanglement Entropy from Black Hole Interiors
- The entropy of Hawking radiation
- Holographic Dual of BCFT
- Aspects of AdS/BCFT
- Entanglement Tsunami: Universal Scaling in Holographic Thermalization
- Massive Islands
- Information Transfer with a Gravitating Bath
- Information radiation in BCFT models of black holes
- An Information Paradox and Its Resolution in de Sitter Holography
- Holographic BCFTs and Communicating Black Holes
- BCFT entanglement entropy at large central charge and the black hole interior
- Entanglement entropy in holographic moving mirror and Page curve
- Entanglement hamiltonian and entanglement contour in inhomogeneous 1D critical systems
- Entanglement contour
- Holographic entanglement contour, bit threads, and the entanglement tsunami
- Entanglement entropy and negative energy in two dimensions
- Fine structure in holographic entanglement and entanglement contour
- Remnant-free Moving Mirror Model for Black Hole Radiation Field
- On Horizonless Temperature with an Accelerating Mirror
- Operator and entanglement growth in non-thermalizing systems: many-body localization and the random singlet phase
- Entropy evolution of moving mirrors and the information loss problem
- A contour for the entanglement entropies in harmonic lattices
- On the continuum limit of the entanglement Hamiltonian
- The negativity contour: a quasi-local measure of entanglement for mixed states
- Firewalls vs. Scrambling
- Entanglement contour and modular flow from subset entanglement entropies
- Holographic Non-equilibrium Heating
- The Fall of Black Hole Firewall: Natural Nonmaximal Entanglement for Page Curve
- On the entanglement contour of excited states in the holographic CFT
- Waking and Scrambling in Holographic Heating up
- Page Curve from Defect Extremal Surface and Island in Higher Dimensions
- Holographic moving mirrors
- First Law and Quantum Correction for Holographic Entanglement Contour
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- Entanglement Phase Structure of a Holographic BCFT in a Black Hole Background
- Balanced Partial Entanglement and Mixed State Correlations
- BCFT in a Black Hole Background: An Analytical Holographic Model
- Entanglement entropy from entanglement contour: higher dimensions
- Analytic Bootstrap in 2D Boundary Conformal Field Theory: Towards Braneworld Holography
- The PEE aspects of entanglement islands from bit threads
- Covariant entanglement wedge cross-section, balanced partial entanglement and gravitational anomalies
- Defect extremal surfaces for entanglement negativity
- Ownerless island and partial entanglement entropy in island phases
- AdS/BCFT from Conformal Bootstrap: Construction of Gravity with Branes and Particles
- Complexity in a moving mirror model
- Geometrizing the Partial Entanglement Entropy: from PEE Threads to Bit Threads
- Entropy of Radiation with Dynamical Gravity
- Infrared Regularization and Finite Size Dynamics of Entanglement Entropy in Schwarzschild Black Hole
- Semiclassical Gravity from Averaged Boundaries in two-dimensional BCFTs
- Reflected Entropy and Entanglement Negativity for Holographic Moving Mirrors
- Correlations of mixed systems in confining backgrounds
- First Law and Quantum Correction for Holographic Entanglement Contour
- Subsystem Complexity and Measurements in Holography
- Holographic BCFT Spectra from Brane Mergers