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quant-ph2016
Exact State Revival in a Spin Chain with Next-To-Nearest Neighbour Interactions
Matthias Christandl, Luc Vinet, Alexei Zhedanov
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 gener…
quant-ph2016★ 37 cited
Analytic next-to-nearest neighbour XX models with perfect state transfer and fractional revival
Matthias Christandl, Luc Vinet, Alexei Zhedanov
Certain non-uniformly coupled spin chains can exhibit perfect transfer of quantum states from end to end. Motivated by recent experimental implementations, we extend the simplest s…