Exact State Revival in a Spin Chain with Next-To-Nearest Neighbour   Interactions
  An extension with next-to-nearest neighbour interactions of the simplest XX spin chain with perfect state transfer (PST) is presented. The conditions for PST and entanglement generation (balanced fractional revival) can be obtained exactly and are discussed. 
Matthias Christandl, Luc Vinet, Alexei Zhedanov
quant-ph