dorsal/arxiv
View SchemaA Scaling Law for the Energy Levels of a Nonlinear Schrodinger Equation
| Authors | R. Hasson, D. Richards |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0012068 |
| URL | https://arxiv.org/abs/quant-ph/0012068 |
| DOI | 10.1088/0953-4075/34/9/315 |
Abstract
It is shown that the energy levels of the one-dimensional nonlinear Schrodinger, or Gross-Pitaevskii, equation with the homogeneous trap potential $x^{2p}$, $p\geq 1$, obey an approximate scaling law and as a consequence the energy increases approximately linearly with the quantum number. Moreover, for a quadratic trap, $p=1$, the rate of increase of energy with the quantum number is independent of the nonlinearity: this prediction is confirmed with numerical calculations. It is also shown that the energy levels computed using a variational approximation do not satisfy this scaling law.
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"abstract": "It is shown that the energy levels of the one-dimensional nonlinear\nSchrodinger, or Gross-Pitaevskii, equation with the homogeneous trap potential\n$x^{2p}$, $p\\geq 1$, obey an approximate scaling law and as a consequence the\nenergy increases approximately linearly with the quantum number. Moreover, for\na quadratic trap, $p=1$, the rate of increase of energy with the quantum number\nis independent of the nonlinearity: this prediction is confirmed with numerical\ncalculations. It is also shown that the energy levels computed using a\nvariational approximation do not satisfy this scaling law.",
"arxiv_id": "quant-ph/0012068",
"authors": [
"R. Hasson",
"D. Richards"
],
"categories": [
"quant-ph",
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"math.MP"
],
"doi": "10.1088/0953-4075/34/9/315",
"title": "A Scaling Law for the Energy Levels of a Nonlinear Schrodinger Equation",
"url": "https://arxiv.org/abs/quant-ph/0012068"
},
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