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Delocalization of Quantum Kicked Rotator with a Large Denominator |
| MA Tao1;LI Shu-Min 1,2 |
| 1Department of Modern Physics, University of Science and Technology of China, Hefei 2300262Institut fur Theoretische Physik, Univsitat Heidelberg, 69120 Heidelberg, Germany |
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MA Tao, LI Shu-Min 2008 Chin. Phys. Lett. 25 1968-1971 |
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Abstract We use the iterative unitary matrix multiplication method to calculate the long-time behaviour of the resonant quantum kicked rotator with a large denominator. The delocalization time is an exponential function of the denominator. The wave function delocalizes through degenerate states. We also construct a nonresonant quantum kicked rotator with delocalization.
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| Keywords:
05.45.Mt
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Received: 06 January 2008
Published: 31 May 2008
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| PACS: |
05.45.Mt
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(Quantum chaos; semiclassical methods)
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