Scalable multiparty steering using a single entangled photon-pair
File version
Version of Record (VoR)
Author(s)
Baker, TJ
Wang, Y
Song, QC
Shalm, LK
Verma, VB
Nam, SW
Tischler, N
Slussarenko, S
Wiseman, HM
Pryde, GJ
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Date
Size
File type(s)
Location
Abstract
The distribution and verification of quantum nonlocality across a network of users is essential for future quantum information science and technology applications. However, beyond simple point-to-point protocols, existing methods struggle with increasingly complex state preparation for a growing number of parties. Here, we experimentally demonstrate multiparty detection-loophole-free quantum steering, where one party simultaneously steers multiple spatially separate parties, using a multi-qubit state produced from a set of qubits of which only one pair is entangled. We derive loss-tolerant steering inequalities, enabling our experiment to close the detection loophole, and enabling us to show the scalability of this approach to rigorously verify quantum nonlocality across arbitrarily many parties. This provides practical tools for developing the future quantum internet.
Journal Title
AVS Quantum Science
Conference Title
Book Title
Edition
Volume
6
Issue
2
Thesis Type
Degree Program
School
Publisher link
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement
© 2024 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Item Access Status
Note
Access the data
Related item(s)
Subject
Quantum physics
Information and computing sciences
Persistent link to this record
Citation
Pepper, A; Baker, TJ; Wang, Y; Song, QC; Shalm, LK; Verma, VB; Nam, SW; Tischler, N; Slussarenko, S; Wiseman, HM; Pryde, GJ, Scalable multiparty steering using a single entangled photon-pair, AVS Quantum Science, 2024, 6 (2), pp. 021401