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arXiv · 1607.02639

Analytic next-to-nearest neighbour XX models with perfect state transfer and fractional revival

Matthias Christandl·Luc Vinet·Alexei Zhedanov
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Abstract

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 such chain to next-to-nearest neighbour (NNN) couplings. It is shown analytically that perfect state transfer can be maintained under the extension and that end-to-end entanglement generation (fractional revival) can occur.

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Matthias Christandl, Luc Vinet, Alexei Zhedanov. 2016-07-09. Analytic next-to-nearest neighbour XX models with perfect state transfer and fractional revival. https://doi.org/10.1103/physreva.96.032335

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