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Generation of scalable genuine multipartite Gaussian entanglement with a parametric amplifier network

Journal Article · · Physical Review A
DOI:https://doi.org/10.1103/wdcl-bnz4· OSTI ID:3015571
 [1];  [2];  [3]
  1. Univ. of Oklahoma, Norman, OK (United States)
  2. Univ. of Queensland, St. Lucia, QLD (Australia); Ecole Polytechnique, Montreal, QC (Canada)
  3. Univ. of Oklahoma, Norman, OK (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
+ Show Author Affiliations
Genuine multipartite entanglement is a valuable resource in quantum information science, as it exhibits inseparability across all possible bipartitions of a multimode quantum state. The large degree of quantum correlations can be exploited in various quantum information protocols, such as teleportation, dense coding, and quantum interferometry. Here, in this study, we propose a scheme to generate scalable genuine multipartite continuous-variable entangled states of light using a parametric amplifier network. We verify the presence of genuine quadripartite, hexapartite, and octapartite entanglement through a violation of the positive partial transpose criteria. Additionally, we use 𝛼-entanglement of formation to demonstrate the scalability of our approach to an arbitrary number of 2⁢𝑁 genuinely entangled parties by taking advantage of the symmetries present in our scheme.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
3015571
Journal Information:
Physical Review A, Journal Name: Physical Review A Journal Issue: 1 Vol. 113; ISSN 2469-9934; ISSN 2469-9926
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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