Entanglement of finite cyclic chains at factorizing fields

Details Entanglement of finite cyclic chains at factorizing fields Entanglement of finite cyclic chains at factorizing fields

2011-01-20

arxiv.org/abs/1101.3908v1

Rossignoli, R., Canosa, N., Matera J.M., Phys. Rev. A 77, 052322(2008)

Physics

Quantum Physics

5 pages, 4 figures

Scientific paper

10.1103/PhysRevA.77.052322

We examine the entanglement of cyclic spin 1/2 chains with anisotropic XY Z Heisenberg couplings of arbitrary range at transverse factorizing magnetic fields. At these fields the system exhibits a degenerate symmetry-breaking separable ground state (GS). It is shown, however, that the side limits of the GS pairwise entanglement at these fields are actually non-zero in finite chains, corresponding such fields to a GS spin-parity transition. These limits exhibit universal properties like being independent of the pair separation and interaction range, and are directly related to the magnetization jump. Illustrative exact results are shown for chains with I) full range and II) nearest neighbor couplings. Global entanglement properties at such points are also discussed.

Affiliated with

Also associated with

No associations

Rating

Entanglement of finite cyclic chains at factorizing fields 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 Entanglement of finite cyclic chains at factorizing fields, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Entanglement of finite cyclic chains at factorizing fields will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-333635