Para-Krawtchouk polynomials on a bi-lattice and a quantum spin chain with perfect state transfer

  title={Para-Krawtchouk polynomials on a bi-lattice and a quantum spin chain with perfect state transfer},
  author={Luc Vinet and Alexei S. Zhedanov},
  journal={Journal of Physics A: Mathematical and Theoretical},
  • L. VinetA. Zhedanov
  • Published 28 October 2011
  • Mathematics
  • Journal of Physics A: Mathematical and Theoretical
Analogues of Krawtchouk polynomials defined on a bi-lattice are introduced. They are shown to provide a (novel) spin chain with perfect transfer. Their characterization, as well as their connection to the quadratic Hahn algebra, is given. 

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