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Analytic "Newton's cradles" with perfect transfer and fractional revival (2108.09386v1)
Published 20 Aug 2021 in math-ph, math.MP, physics.class-ph, and quant-ph
Abstract: Analytic mass-spring chains with dispersionless pulse transfer and fractional revival are presented. These are obtained using the properties of the para-Racah polynomials. This provides classical analogs of the quantum spin chains that realize important tasks in quantum information: perfect state transfer and entanglement generation.