



01207nas a2200145   4500008004100000245008800041210006900129260001500198300001100213490000700224520075600231100001900987700001801006856003701024       2013                        eng d00aPrethermalization and dynamical transition in an isolated trapped ion  spin chain
0 aPrethermalization and dynamical transition in an isolated trappe  c2013/11/26  a1130510 v153 a  We propose an experimental scheme to observe prethermalization and dynamical
transition in one-dimensional XY spin chain with long range interaction and
inhomogeneous lattice spacing, which can be readily implemented with the
recently developed trapped-ion quantum simulator. Local physical observables
are found to relax to prethermal values at intermediate time scale, followed by
complete relaxation to thermal values at much longer time. The physical origin
of prethermalization is explained by spotting a non-trivial structure in lower
half of the energy spectrum. The dynamical behavior of the system is shown to
cross difference phases when the interaction range is continuously tuned,
indicating the existence of dynamical phase transition.
1 aGong, Zhe-Xuan1 aDuan, L., -M.  uhttp://arxiv.org/abs/1305.0985v1