Entanglement witness via symmetric two-body correlations

• Main Authors: Tan, Ernest Y.-Z., Kaszlikowski, Dagomir, Kwek, Leong Chuan
• Other Authors: MajuLab, CNRS-UNS-NUS-NTU International Joint Research Unit
• Format: Article
• Language: English
• Published: 2018
• Subjects: Entanglement Witness; Two-body Correlations; DRNTU::Science::Physics
• Online Access: https://hdl.handle.net/10356/89574; http://hdl.handle.net/10220/46305
• Institution: Nanyang Technological University

We construct an entanglement witness for many-qubit systems, based on symmetric two-body correlations with two measurement settings. This witness is able to detect the entanglement of some Dicke states for any number of particles and such detection exhibits some robustness against white noise and th...