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Quasi-energy distributions in the kicked Harper model
We study a one-dimensional kicked quantum system characterized by a single classical parameter γ and a quantum parameter N∝ħ −1. An ensemble of time evolution operators is obtained by varying the phase-space boundary conditions, and the spectral correlations are studied within this ensemble. As γ te...
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Published in: | Physics letters. A 1991-09, Vol.158 (9), p.469-474 |
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Main Authors: | , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | We study a one-dimensional kicked quantum system characterized by a single classical parameter γ and a quantum parameter
N∝ħ
−1. An ensemble of time evolution operators is obtained by varying the phase-space boundary conditions, and the spectral correlations are studied within this ensemble. As γ tends to infinity, rendering the classical (
N→∞) limit strongly chaotic, the quasi-energy pair correlation function
g
γ(ω) tends toward a limit, which for large
N is well described by the level statistics of circular random matrix ensembles. |
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ISSN: | 0375-9601 1873-2429 |
DOI: | 10.1016/0375-9601(91)90462-H |