Browse by author
Lookup NU author(s): Dr Jonte HanceORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
Teleportation is a cornerstone of quantum technologies, and has played a key role in the development of quantum information theory. Pushing the limits of teleportation is therefore of particular importance. Here, we apply a different aspect of quantumness to teleportation---namely exchange-free, or counterfactual, computation at a distance. We propose a universal controlled-phase gate, where no particles are exchanged between control and target. This allows the full repertoire of quantum computation to me made exchange-free, including both complete Bell detection among two remote parties and so teleportation and telecloning. Further, we show that this gate, and the protocols based on it, is experimentally feasible, simulating the fidelity of our exchange-free teleportation and telecloning protocols for realistic bit-errors.
Author(s): Salih H, Hance JR, McCutcheon W, Rudolph T, Rarity J
Publication type: Article
Publication status: Published
Journal: Journal of Physics Communications
Year: 2025
Volume: 9
Issue: 4
Online publication date: 28/04/2025
Acceptance date: 17/04/2025
Date deposited: 18/04/2025
ISSN (electronic): 2399-6528
Publisher: Institute of Physics Publishing
URL: https://doi.org/10.1088/2399-6528/adce54
DOI: 10.1088/2399-6528/adce54
Data Access Statement: The data that support the findings of this study are openly available at the following URL/DOI: https://doi.org/ 10.5281/zenodo.4974506.
Altmetrics provided by Altmetric
