Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2011-05-04
Phys. Rev. E. 84, 016206 (2011)
Physics
Condensed Matter
Statistical Mechanics
9 pages, 5 figures, 1 table
Scientific paper
We study the time evolution of correlation functions, spin current, and local magnetization in an isolated spin-1/2 chain initially prepared in a sharp domain wall state. The results are compared with the level of spatial delocalization of the eigenstates of the system which is measured using the inverse participation ratio. Both integrable and non-integrable regimes are considered. Non-integrability is introduced to the integrable Hamiltonian with nearest neighbor couplings by adding a single site impurity field or by adding next-nearest-neighbor couplings. A monotonic correspondence between the enhancement of the level of delocalization, spin current and magnetization dynamics occurs in the integrable domain. This correspondence is however lost for chaotic models with weak Ising interactions.
Mitra Aditi
Santos Lea F.
No associations
LandOfFree
Domain wall dynamics in integrable and chaotic spin-1/2 chains 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 Domain wall dynamics in integrable and chaotic spin-1/2 chains, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Domain wall dynamics in integrable and chaotic spin-1/2 chains will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-688808