dorsal/arxiv
View SchemaCurve crossing in linear potential grids: the quasidegeneracy approximation
| Authors | V. A. Yurovsky, A. Ben-Reuven |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0008087 |
| URL | https://arxiv.org/abs/quant-ph/0008087 |
| DOI | 10.1103/PhysRevA.63.043404 |
| Journal | Phys. Rev. A 63 2001 043404 |
Abstract
The quasidegeneracy approximation [V. A. Yurovsky, A. Ben-Reuven, P. S. Julienne, and Y. B. Band, J. Phys. B {\bf 32}, 1845 (1999)] is used here to evaluate transition amplitudes for the problem of curve crossing in linear potential grids involving two sets of parallel potentials. The approximation describes phenomena, such as counterintuitive transitions and saturation (incomplete population transfer), not predictable by the assumption of independent crossings. Also, a new kind of oscillations due to quantum interference (different from the well-known St\"uckelberg oscillations) is disclosed, and its nature discussed. The approximation can find applications in many fields of physics, where multistate curve crossing problems occur.
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"abstract": "The quasidegeneracy approximation [V. A. Yurovsky, A. Ben-Reuven, P. S.\nJulienne, and Y. B. Band, J. Phys. B {\\bf 32}, 1845 (1999)] is used here to\nevaluate transition amplitudes for the problem of curve crossing in linear\npotential grids involving two sets of parallel potentials. The approximation\ndescribes phenomena, such as counterintuitive transitions and saturation\n(incomplete population transfer), not predictable by the assumption of\nindependent crossings. Also, a new kind of oscillations due to quantum\ninterference (different from the well-known St\\\"uckelberg oscillations) is\ndisclosed, and its nature discussed. The approximation can find applications in\nmany fields of physics, where multistate curve crossing problems occur.",
"arxiv_id": "quant-ph/0008087",
"authors": [
"V. A. Yurovsky",
"A. Ben-Reuven"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.63.043404",
"journal_ref": "Phys. Rev. A 63 2001 043404",
"title": "Curve crossing in linear potential grids: the quasidegeneracy approximation",
"url": "https://arxiv.org/abs/quant-ph/0008087"
},
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