dorsal/arxiv
View SchemaExact solutions of time-dependent three-generator systems
| Authors | Jian-Qi Shen, Hong-Yi Zhu, Pan Chen |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0205170 |
| URL | https://arxiv.org/abs/quant-ph/0205170 |
Abstract
There exist a number of typical and interesting systems or models which possess three-generator Lie-algebraic structure in atomic physics, quantum optics, nuclear physics and laser physics. The well-known fact that all simple 3-generator algebras are either isomorphic to the algebra $sl(2,C)$ or to one of its real forms enables us to treat these time-dependent quantum systems in a unified way. By making use of the Lewis-Riesenfeld invariant theory and the invariant-related unitary transformation formulation, the present paper obtains exact solutions of the time-dependent Schr\"{o}dinger equations governing various three-generator quantum systems. For some quantum systems whose time-dependent Hamiltonians have no quasialgebraic structures, we show that the exact solutions can also be obtained by working in a sub-Hilbert-space corresponding to a particular eigenvalue of the conserved generator (i.e., the time-independent invariant that commutes with the time-dependent Hamiltonian). The topological property of geometric phase factors in time-dependent systems is briefly discussed.
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"abstract": "There exist a number of typical and interesting systems or models which\npossess three-generator Lie-algebraic structure in atomic physics, quantum\noptics, nuclear physics and laser physics. The well-known fact that all simple\n3-generator algebras are either isomorphic to the algebra $sl(2,C)$ or to one\nof its real forms enables us to treat these time-dependent quantum systems in a\nunified way. By making use of the Lewis-Riesenfeld invariant theory and the\ninvariant-related unitary transformation formulation, the present paper obtains\nexact solutions of the time-dependent Schr\\\"{o}dinger equations governing\nvarious three-generator quantum systems. For some quantum systems whose\ntime-dependent Hamiltonians have no quasialgebraic structures, we show that the\nexact solutions can also be obtained by working in a sub-Hilbert-space\ncorresponding to a particular eigenvalue of the conserved generator (i.e., the\ntime-independent invariant that commutes with the time-dependent Hamiltonian).\nThe topological property of geometric phase factors in time-dependent systems\nis briefly discussed.",
"arxiv_id": "quant-ph/0205170",
"authors": [
"Jian-Qi Shen",
"Hong-Yi Zhu",
"Pan Chen"
],
"categories": [
"quant-ph"
],
"title": "Exact solutions of time-dependent three-generator systems",
"url": "https://arxiv.org/abs/quant-ph/0205170"
},
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