dorsal/arxiv
View SchemaA new dynamical group approach to the modified Poschl-Teller potential
| Authors | Shi-Hai Dong, R. Lemus |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0110157 |
| URL | https://arxiv.org/abs/quant-ph/0110157 |
Abstract
The properties of the modified P\"{o}schl-Teller (MPT) potential are outlined. The ladder operators are constructed directly from the wave functions without introducing any auxiliary variable. It is shown that these operators are associated to the $su(2)$ algebra. Analytical expressions for the functions $\sinh(\alpha x)$ and $\frac{\cosh(\alpha x)}{\alpha} \frac{d}{dx}$ are evaluated from these ladder operators. The expansions of the coordinate $x$ and momentum $\hat p$ in terms of the $su(2)$ generators are presented. This analysis allows to establish an exact quantum-mechanical connection between the $su(2)$ vibron model and the traditional descriptions of molecular vibron.
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"abstract": "The properties of the modified P\\\"{o}schl-Teller (MPT) potential are\noutlined. The ladder operators are constructed directly from the wave functions\nwithout introducing any auxiliary variable. It is shown that these operators\nare associated to the $su(2)$ algebra. Analytical expressions for the functions\n$\\sinh(\\alpha x)$ and $\\frac{\\cosh(\\alpha x)}{\\alpha} \\frac{d}{dx}$ are\nevaluated from these ladder operators. The expansions of the coordinate $x$ and\nmomentum $\\hat p$ in terms of the $su(2)$ generators are presented. This\nanalysis allows to establish an exact quantum-mechanical connection between the\n$su(2)$ vibron model and the traditional descriptions of molecular vibron.",
"arxiv_id": "quant-ph/0110157",
"authors": [
"Shi-Hai Dong",
"R. Lemus"
],
"categories": [
"quant-ph"
],
"title": "A new dynamical group approach to the modified Poschl-Teller potential",
"url": "https://arxiv.org/abs/quant-ph/0110157"
},
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