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Peer-reviewedCC BY 4.0Journal of High Energy Physics

Holographic entanglement propagation through wormholes

  • Kazuki Doi1
  • Liang Li1
  • Ung Nguyen1
  • Tadashi Takayanagi1,2
  1. 1Kyoto University
  2. 2Inamori Research Institute for Science
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Abstract

A bstract : We study how energy and quantum entanglement are transferred under a post-selection when two identical CFTs are entangled locally. This is probed by considering a local operator insertion in one of the CFTs. When the CFTs have holographic duals via the AdS/CFT correspondence, the transfer happens through an AdS wormhole that allows signal propagation even beyond the horizon from one AdS boundary to the other; we demonstrate this in explicit CFT calculations. We argue that this transmission is possible because the insertion of a local operator is not a unitary process but a regularized version of projection measurement, and that this is closely related to quantum teleportation. We also find that this leads to a phenomenon opposite to scrambling, where mutual information, instead of being suppressed, gets enhanced by the insertion of a local operator excitation.

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Cite

BibTeXRIS
BibTeX
@article{doi2026holographic,
  title = {{Holographic entanglement propagation through wormholes}},
  author = {Kazuki Doi and Liang Li and Ung Nguyen and Tadashi Takayanagi},
  journal = {Journal of High Energy Physics},
  year = {2026},
  month = oct,
  doi = {10.1007/jhep10(2026)093},
  url = {https://link.springer.com/10.1007/JHEP10(2026)093},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Holographic entanglement propagation through wormholes
AU  - Kazuki Doi
AU  - Liang Li
AU  - Ung Nguyen
AU  - Tadashi Takayanagi
PY  - 2026
DA  - 2026/10/08
JO  - Journal of High Energy Physics
DO  - 10.1007/jhep10(2026)093
UR  - https://link.springer.com/10.1007/JHEP10(2026)093
AB  - A bstract : We study how energy and quantum entanglement are transferred under a post-selection when two identical CFTs are entangled locally. This is probed by considering a local operator insertion in one of the CFTs. When the CFTs have holographic duals via the AdS/CFT correspondence, the transfer happens through an AdS wormhole that allows signal propagation even beyond the horizon from one AdS boundary to the other; we demonstrate this in explicit CFT calculations. We argue that this transmission is possible because the insertion of a local operator is not a unitary process but a regularized version of projection measurement, and that this is closely related to quantum teleportation. We also find that this leads to a phenomenon opposite to scrambling, where mutual information, instead of being suppressed, gets enhanced by the insertion of a local operator excitation.
SN  - 1029-8479
ER  -