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Quantum revivals and carpets in some exactly solvable systems

Will Loinaz, T. J. Newman

quant-pharXiv:quant-ph/9902039

Abstract

We consider the revival properties of quantum systems with an eigenspectrum En proportional to n2, and compare them with the simplest member of this class - the infinite square well. In addition to having perfect revivals at integer multiples of the revival time tR, these systems all enjoy perfect fractional revivals at quarterly intervals of tR. A closer examination of the quantum evolution is performed for the Poeschel-Teller and Rosen-Morse potentials, and comparison is made with the infinite square well using quantum carpets.

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