Quantum Information & Computation
Volume 24, Issue 1
RESEARCH ARTICLE Open access

A Triality Pattern in Entanglement Theory

Daniel Cariello

Author affiliations
  • Daniel Cariello1
  1. Faculdade de Matemática, Universidade Federal de Uberlândia, Uberlândia, Brazil

pp. 40-57 · 10.2478/qic-2024-0003

Abstract

In this work, we present new connections between three types of quantum states: positive under partial transpose states, symmetric with positive coefficients states and invariant under realignment states. First, we obtain a common upper bound for their spectral radii. Then we prove the existence of a lower bound for their ranks and the fact that whenever this bound is attained the states are separable. These connections add new evidence to the pattern that for every proven result for one of these types, there are counterparts for the other two, which is a potential source of information for entanglement theory.
Open accessCC BY-NC-SA 4.0

Keywords

  • filter normal form
  • separability
  • complete reducibility property
  • spectral radius

Suggested citation

Daniel Cariello (2024). A Triality Pattern in Entanglement Theory. Quantum Information & Computation, 24(1), 40-57. https://doi.org/10.2478/qic-2024-0003

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