Level crossing and quantum phase transition of the XY model

Details Level crossing and quantum phase transition of the XY model Level crossing and quantum phase transition of the XY model

2006-11-28

arxiv.org/abs/quant-ph/0611270v1

Physics

Quantum Physics

16 pages, 22 figures

Scientific paper

The ground state of a one-dimensional spin-1/2 chain with periodical boundary condition in the Heisenberg XY model is investigated. We consider the spatial correlation and concurrence between any nearest-neighbor pair of spins under the conditions of different coupling strength, anisotropic parameter and magnitude of a transverse field. Quantum phase transitions due to the competition between coupling and alignment which cause the abrupt changes of the correlation and concurrence are observed. The transition are direct results of the level crossing.

Affiliated with

Also associated with

No associations

Rating

Level crossing and quantum phase transition of the XY model 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 Level crossing and quantum phase transition of the XY model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Level crossing and quantum phase transition of the XY model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-350981