Sudden switch of generalized Lieb-Robinson velocity in a transverse field Ising spin chain

Details Sudden switch of generalized Lieb-Robinson velocity in a transverse field Ising spin chain Sudden switch of generalized Lieb-Robinson velocity in a transverse field Ising spin chain

2011-09-25

arxiv.org/abs/1109.5333v2

Physics

Quantum Physics

Scientific paper

The Lieb-Robinson theorem states that the speed at which the correlations between two distant nodes in a spin network can be built through local interactions has an upper bound, which is called the Lieb-Robinson velocity. Our central aim is to demonstrate how to observe the Lieb-Robinson velocity in an Ising spin chain with a strong transverse field. We adopt and compare four correlation measures for characterizing different types of correlations, which include correlation function, mutual information, quantum discord, and entanglement of formation. We prove that one of correlation functions shows a special behavior depending on the parity of the spin number. All the information-theoretical correlation measures demonstrate the existence of the Lieb-Robinson velocity. In particular, we find that there is a sudden switch of the Lieb-Robinson speed with the increasing of the number of spin.

Affiliated with

Also associated with

No associations

Rating

Sudden switch of generalized Lieb-Robinson velocity in a transverse field Ising spin chain 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 Sudden switch of generalized Lieb-Robinson velocity in a transverse field Ising spin chain, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sudden switch of generalized Lieb-Robinson velocity in a transverse field Ising spin chain will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-74090