Bounds to unitary evolution

Mark Andrews

doi:10.1103/PhysRevA.75.062112

Bounds to unitary evolution

Mark Andrews^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

Upper and lower bounds are established for the survival probability ψ(0) ψ(t) 2 of a quantum state, in terms of the energy moments ψ(0) Hn ψ(0). Introducing a cutoff in the energy generally enables considerable improvement in these bounds and allows the method to be used where the exact energy moments do not exist.

Original language	English
Article number	062112
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	75
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevA.75.062112
Publication status	Published - 21 Jun 2007

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10.1103/PhysRevA.75.062112

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Bounds to unitary evolution

Abstract

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