Signatures of wave packet revival phenomena in the expectation values of observables

Details Signatures of wave packet revival phenomena in the expectation values of observables Signatures of wave packet revival phenomena in the expectation values of observables

2004-01-29

arxiv.org/abs/quant-ph/0401181v2

Physics

Quantum Physics

15 pages, RevTeX4, 6 figures (v2) Same paper, electronically garbled abstract corrected!

Scientific paper

Wave packet revivals and fractional revivals are striking quantum interference phenomena that can occur under suitable conditions in a system with a nonlinear spectrum. In the framework of a specific model (the propagation of an initially coherent wave packet in a Kerr-like medium), it is shown that distinctive signatures of these revivals and fractional revivals are displayed by the time evolution of the expectation values of physical observables and their powers, i.e., by experimentally measurable quantities. Moreover, different fractional revivals can be selectively identified by examining appropriate higher moments.

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