Work

Detecting k -nonstretchability via a class of informationally complete symmetric measurements

Year: 2026

Type: article

Abstract: Characterizing multipartite entanglement is a fundamental problem in quantum information theory. The concept of k -stretchability provides a framework for characterizing the structure of multipartite entanglement. We investigate k -nonstretchability using informationally complete ( s , t ) -positive operator-valued measures ( ( s , t ) -POVMs) informationally complete ( s , t ) -positive operator-valued measures ( ( s , t ) -POVMs) and derive two families of criteria. These criteria identify classes of k -nonstretchable states, and we demonstrate their applicability and advantages through explicit examples.

Source: Journal of Physics A Mathematical and Theoretical

DOI: 10.1088/1751-8121/ae8c96

Authors: Yan Hong, Mengjia Zhang, Limin Gao, Huaqi Zhou, Limei Zhang

Institutions: Hebei GEO University, Hengshui University

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funders: National Natural Science Foundation of China, Hebei GEO University

Award: G995639155