Generalizing Choi map in M3 beyond circulant scenario

A Bera, G Scala, G Sarbicki… - Linear and Multilinear …, 2025 - Taylor & Francis
We introduce a family of positive linear maps in the algebra of 3× 3 complex matrices, which
generalizes the seminal positive non-decomposable map originally proposed by Choi …

Lower bounds of entanglement quantifiers based on entanglement witnesses

X Shi - The European Physical Journal Plus, 2024 - Springer
How to quantify the entanglement of bipartite systems effectively is a challenging problem in
general. In this manuscript, we derive a method to evaluate the entanglement of a bipartite …