dorsal/arxiv
View SchemaSmooth adiabatic evolutions with leaky power tails
| Authors | J. E. Avron, A. Elgart |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9909063 |
| URL | https://arxiv.org/abs/quant-ph/9909063 |
| DOI | 10.1088/0305-4470/32/50/102 |
Abstract
Adiabatic evolutions with a gap condition have, under a range of circumstances, exponentially small tails that describe the leaking out of the spectral subspace. Adiabatic evolutions without a gap condition do not seem to have this feature in general. This is a known fact for eigenvalue crossing. We show that this is also the case for eigenvalues at the threshold of the continuous spectrum by considering the Friedrichs model.
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"abstract": "Adiabatic evolutions with a gap condition have, under a range of\ncircumstances, exponentially small tails that describe the leaking out of the\nspectral subspace. Adiabatic evolutions without a gap condition do not seem to\nhave this feature in general. This is a known fact for eigenvalue crossing. We\nshow that this is also the case for eigenvalues at the threshold of the\ncontinuous spectrum by considering the Friedrichs model.",
"arxiv_id": "quant-ph/9909063",
"authors": [
"J. E. Avron",
"A. Elgart"
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"doi": "10.1088/0305-4470/32/50/102",
"title": "Smooth adiabatic evolutions with leaky power tails",
"url": "https://arxiv.org/abs/quant-ph/9909063"
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