Quantum discord and quantum phase transition in spin-1/2 frustrated Heisenberg chain

Chu-Hui Fan, Heng-Na Xiong, Yixiao Huang +1

By using the concept of the quantum discord (QD), we study the spin-1/2 antiferromagnetic Heisenberg chain with next-nearest-neighbor interaction. Due to the SU(2) symmetry and $Z_…