dorsal/arxiv
View SchemaQuantum Parametric Resonance
| Authors | Stefan Weigert |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0106138 |
| URL | https://arxiv.org/abs/quant-ph/0106138 |
| DOI | 10.1088/0305-4470/35/18/312 |
| Journal | J. Phys. A 35 (2002) 4669 |
Abstract
The quantum mechanical equivalent of parametric resonance is studied. A simple model of a periodically kicked harmonic oscillator is introduced which can be solved exactly. Classically stable and unstable regions in parameter space are shown to correspond to Floquet operators with qualitatively different properties. Their eigenfunctions, which are calculated exactly, exhibit a transition: for parameter values with classically stable solutions the eigenstates are normalizable while they cannot be normalized for parameter values with classically instable solutions. Similarly, the spectrum of quasi energies undergoes a specific transition. These observations remain valid qualitatively for arbitrary linear systems exhibiting classically parametric resonance such as the paradigm example of a frequency modulated pendulum described by Mathieu's equation.
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"abstract": "The quantum mechanical equivalent of parametric resonance is studied. A\nsimple model of a periodically kicked harmonic oscillator is introduced which\ncan be solved exactly. Classically stable and unstable regions in parameter\nspace are shown to correspond to Floquet operators with qualitatively different\nproperties. Their eigenfunctions, which are calculated exactly, exhibit a\ntransition: for parameter values with classically stable solutions the\neigenstates are normalizable while they cannot be normalized for parameter\nvalues with classically instable solutions. Similarly, the spectrum of quasi\nenergies undergoes a specific transition. These observations remain valid\nqualitatively for arbitrary linear systems exhibiting classically parametric\nresonance such as the paradigm example of a frequency modulated pendulum\ndescribed by Mathieu\u0027s equation.",
"arxiv_id": "quant-ph/0106138",
"authors": [
"Stefan Weigert"
],
"categories": [
"quant-ph"
],
"doi": "10.1088/0305-4470/35/18/312",
"journal_ref": "J. Phys. A 35 (2002) 4669",
"title": "Quantum Parametric Resonance",
"url": "https://arxiv.org/abs/quant-ph/0106138"
},
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