Frontiers in Physics (Jun 2022)

Unextendible Entangled Bases With a Fixed Schmidt Number Based on Generalized Weighing Matrices

  • Yuan-Hong Tao,
  • Yuan-Hong Tao,
  • Xin-Lei Yong,
  • Ya-Ru Bai,
  • Dan-Ni Xu,
  • Shu-Hui Wu

DOI
https://doi.org/10.3389/fphy.2022.896164
Journal volume & issue
Vol. 10

Abstract

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We systematically study the constructions of unextendible entangled bases with a fixed Schmidt number k (UEBk) in a bipartite system Cd⊗Cd′. Motivated by the methods of [J. Phys. A 52 : 375,303, 2019], we construct (dd’ − v)-member UEBks in Cd⊗Cd′ by using generalized weighing matrices and thus generalize the results of [arXiv: 1909.10043, 2020]. We also present the corresponding expressions of our constructions and graphically illustrate UEB3s in C5⊗C6 and C6⊗C6.

Keywords