Optimization of deterministic photonic-graph-state generation via local operations
Realizing photonic graph states, crucial in various quantum protocols, is challenging due to the absence of deterministic entangling gates in linear optics. To address this, emitter qubits have been leveraged to establish and transfer the entanglement to photons. We introduce an optimization method for such protocols based on the local Clifford equivalency of states and the graph theoretical correlations of the generation cost parameters. Employing this method, we achieve a 50% reduction in use of the two-qubit gates for generation of the arbitrary large repeater graph states and similar significant reductions in the total gate count for generation of random dense graphs.
Authors
- Hoi‐Kwong Lo (ORCID: https://orcid.org/0000-0002-0340-4989)
- Benjamin MacLellan (ORCID: https://orcid.org/0000-0001-7576-8020)
- Jie Lin (ORCID: https://orcid.org/0000-0003-1750-2659)
- Piotr Roztocki (ORCID: https://orcid.org/0000-0002-1068-6355)
- Luc Robichaud (ORCID: https://orcid.org/0000-0001-8974-0504)
- Sobhan Ghanbari (ORCID: https://orcid.org/0009-0004-0318-4914)
Institutions
- University of Waterloo (CA)
- University of Toronto (CA)
- Applied Quantum Technologies (United States) (US)
Publication Details
- Journal
- Physical review. A/Physical review, A
- Published
- 2024-11-15
- DOI
- https://doi.org/10.1103/physreva.110.052605
- Citations
- 8
- Primary Topic
- Neural Networks and Reservoir Computing
- Type
- article
- Field-Weighted Citation Impact
- 2.78
Funders
- Mitacs
- Natural Sciences and Engineering Research Council of Canada
- National Research Council Canada
- Air Force Office of Scientific Research