Vijay Balasubramanian
Signals of multiparty entanglement and holography
Balasubramanian, Vijay; Kang, Monica Jinwoo; Murdia, Chitraang; Ross, Simon F.
Abstract
We study multiparty entanglement signals, which are functions of a quantum state that are non-zero only when the state has multiparty entanglement. We consider known signals of three- and four-party entanglement, and propose new signals for four- and higher-party entanglement. We make some remarks on their general properties, but mainly focus on using holographic states in AdS_3/CFT_2 as a test case to explore their properties. For both the AdS vacuum and multiboundary wormhole states, we find that the multiparty entanglement signals are generically non-zero and of order one in units of the central charge of the dual CFT, revealing substantial multiparty entanglement. In the large-horizon limit of multiboundary wormhole states, however, the signals for three or more parties become small, indicating the short-range nature of entanglement.
Citation
Balasubramanian, V., Kang, M. J., Murdia, C., & Ross, S. F. (2025). Signals of multiparty entanglement and holography. Journal of High Energy Physics, 2025(6), Article 68. https://doi.org/10.1007/jhep06%282025%29068
Journal Article Type | Article |
---|---|
Acceptance Date | Apr 22, 2025 |
Online Publication Date | Jun 6, 2025 |
Publication Date | 2025 |
Deposit Date | Jun 11, 2025 |
Publicly Available Date | Jun 11, 2025 |
Journal | Journal of High Energy Physics |
Print ISSN | 1126-6708 |
Electronic ISSN | 1029-8479 |
Publisher | Scuola Internazionale Superiore di Studi Avanzati (SISSA) |
Peer Reviewed | Peer Reviewed |
Volume | 2025 |
Issue | 6 |
Article Number | 68 |
DOI | https://doi.org/10.1007/jhep06%282025%29068 |
Public URL | https://durham-repository.worktribe.com/output/4094191 |
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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/
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