Quantum correlation in three-qubit Heisenberg model with Dzyaloshinskii-Moriya interaction

Details Quantum correlation in three-qubit Heisenberg model with Dzyaloshinskii-Moriya interaction Quantum correlation in three-qubit Heisenberg model with Dzyaloshinskii-Moriya interaction

2011-04-08

arxiv.org/abs/1104.1525v2

Physics

Quantum Physics

6 pages, 6 figures

Scientific paper

We investigate the pairwise thermal quantum discord in a three-qubit XXZ model with Dzyaloshinskii-Moriya (DM) interaction. We find that the DM interaction can increase quantum discord to a fixed value in the anti- ferromagnetic system, but decreases quantum discord to a minimum first, then increases it to a fixed value in the ferromagnetic system. Abrupt change of quantum discord is observed, which indicates the abrupt change of groundstate. Dynamics of pairwise thermal quantum discord is also considered. We show that thermal discord vanishes in asymptotic limit regardless of its initial values, while thermal entanglement suddenly disappears at finite time.

Affiliated with

Also associated with

No associations

Rating

Quantum correlation in three-qubit Heisenberg model with Dzyaloshinskii-Moriya interaction does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Quantum correlation in three-qubit Heisenberg model with Dzyaloshinskii-Moriya interaction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum correlation in three-qubit Heisenberg model with Dzyaloshinskii-Moriya interaction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-354421