Work

Signals of multiparty entanglement and holography

Type: article

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.

Source: Durham Research Online (Durham University)

DOI: 10.1007/jhep06%282025%29068

Authors: Balasubramanian, Vijay, Kang, Monica Jinwoo, Murdia, Chitraang, Ross, Simon F.

Institutions: University of Pennsylvania, Durham University

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, U.S. Department of Energy, Aspen Center for Physics, University of Oxford, Science and Technology Facilities Council, Balliol College, University of Oxford

Awards: G1677287301, G2595738051, Particles, Fields and Spacetime, G5294582474, G638484911, Programs on Critical Problems in Physics, Astrophysics and Biophysics at the Aspen Center for Physics

OpenAlex ID: W6959455617

Cites:

Cited by:

Related to: