dorsal/arxiv
View SchemaNonextensive approach to decoherence in quantum mechanics
| Authors | A. Vidiella-Barranco, H. Moya-Cessa |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0002071 |
| URL | https://arxiv.org/abs/quant-ph/0002071 |
| DOI | 10.1016/S0375-9601(00)00820-3 |
| Journal | Phys. Lett. A 279, 56-60 (2001) |
Abstract
We propose a nonextensive generalization (q parametrized) of the von Neumann equation for the density operator. Our model naturally leads to the phenomenon of decoherence, and unitary evolution is recovered in the limit of q -> 1. The resulting evolution yields a nonexponential decay for quantum coherences, fact that might be attributed to nonextensivity. We discuss, as an example, the loss of coherence observed in trapped ions.
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"abstract": "We propose a nonextensive generalization (q parametrized) of the von Neumann\nequation for the density operator. Our model naturally leads to the phenomenon\nof decoherence, and unitary evolution is recovered in the limit of q -\u003e 1. The\nresulting evolution yields a nonexponential decay for quantum coherences, fact\nthat might be attributed to nonextensivity. We discuss, as an example, the loss\nof coherence observed in trapped ions.",
"arxiv_id": "quant-ph/0002071",
"authors": [
"A. Vidiella-Barranco",
"H. Moya-Cessa"
],
"categories": [
"quant-ph"
],
"doi": "10.1016/S0375-9601(00)00820-3",
"journal_ref": "Phys. Lett. A 279, 56-60 (2001)",
"title": "Nonextensive approach to decoherence in quantum mechanics",
"url": "https://arxiv.org/abs/quant-ph/0002071"
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