## Abstract

Consider a classically chaotic system that is described by a Hamiltonian [formula presented] At [formula presented] the Hamiltonian undergoes a sudden change [formula presented] We consider the quantum-mechanical spreading of the evolving energy distribution, and argue that it cannot be analyzed using a conventional random-matrix theory (RMT) approach. Conventional RMT can be trusted only to the extent that it gives trivial results that are implied by first-order perturbation theory. Nonperturbative effects are sensitive to the underlying classical dynamics, and therefore the [formula presented] behavior for effective RMT models is strikingly different from the correct semiclassical limit.

Original language | English GB |
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Article number | 065202 |

Pages (from-to) | 1-4 |

Number of pages | 4 |

Journal | Physical Review E |

Volume | 64 |

Issue number | 6 |

DOIs | |

State | Published - 1 Jan 2001 |

## ASJC Scopus subject areas

- Statistical and Nonlinear Physics
- Statistics and Probability
- Condensed Matter Physics