Multipartite GHZ diagonal states and their entanglement properties

In this paper, we investigate the family of GHZ diagonal states, which are mixed multipartite quantum states that are diagonal in a GHZ type basis. We show that the class of GHZ diagonal states is highly symmetric and exhibits rich entanglement properties, making it relevant for applications in multipartite quantum key distribution. --- Source: arXiv:2609.28351v1 - http://arxiv.org/abs/2609.28351v1 PDF: https://arxiv.org/pdf/2609.28351v1 Original Link: http://arxiv.org/abs/2609.28351v1...