Friday, November 9, 2012

1110.6475 (Luc Vinet et al.)

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

Luc Vinet, Alexei Zhedanov
Analogs of Krawtchouk polynomials defined on a bi-lattice are introduced. They are shown to provide a (novel) spin chain with perfect transfer. Their characterization is given as well as their connection to the quadratic Hahn algebra
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