Physics – Quantum Physics
Scientific paper
2006-04-05
Physical Review A 73, 062109 (2006)
Physics
Quantum Physics
16 pages, 11 figures
Scientific paper
10.1103/PhysRevA.73.062109
We determine thermal entanglement in mean field clusters of $N$ spin one-half particles interacting via the anisotropic Heisenberg interaction, with and without external magnetic field. For the $xxx$ cluster in the absence of magnetic field we prove that only the N=2 ferromagnetic cluster shows entanglement. An external magnetic field $B$ can only entangle $xxx$ anti-ferromagnetic clusters in certain regions of the $B-T$ plane. On the other hand, the $xxz$ clusters of size $N>2$ are entangled only when the interaction is ferromagnetic. Detailed dependence of the entanglement on various parameters is investigated in each case.
Asoudeh Marzieh
Karimipour Vahid
No associations
LandOfFree
Thermal entanglement of spins in mean-field clusters 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 Thermal entanglement of spins in mean-field clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal entanglement of spins in mean-field clusters will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-419115