2013/07/02 by Shuhao Wang, Wang, Shuhao, Hui Li +7
Computer Science · Physics and Astronomy · #FOS: Physical sciences #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum Physics (quant-ph) #quant-ph
paper · pdf · doi:10.48550/arxiv.1307.0576
We have revised the manuscript. Comments are welcome
openalex publication_date 2013/07/02 · arxiv created 2015/12/25 · arxiv updated 2015/12/29 · openalex created_date 2016/08/23 · openalex updated_date 2026/07/28
Quantum correlations are of fundamental importance in quantum phenomena and quantum information processing studies. The measure of quantum correlations is one central issue. The recently proposed measure of quantum correlations, the local quantum uncertainty (LQU), satisfies the full physical requirements of a measure of quantum correlations. In this work, by using operator relaxation, a closed form lower bound of the LQU for arbitrary-dimensional bipartite quantum states is derived. We have compared the lower bound and the optimized LQU for several typical quantum states.