Reexamination of the purity entanglement measure: Peculiarities of a truly thermodynamic quantum correlation measure

• Main Authors: Batle, J., Ooi, Chong Heng Raymond, Abdalla, S.
• Format: Article
• Published: American Physical Society 2015
• Subjects: Q Science (General); QC Physics
• Online Access: http://eprints.um.edu.my/16078/; https://doi.org/10.1103/PhysRevA.92.062341
• Institution: Universiti Malaya

The purity entanglement measure introduced by Los Alamos group a decade ago is reexamined in the light of interesting features. The role played by purity, reaching a real thermodynamic limit, in detecting quantum phase transitions is studied with a different system, the bond-alternating XY model in...