dorsal/arxiv
View SchemaWigner Centennial: His Function, and Its Environmental Decoherence
| Authors | Lajos Diosi |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0212103 |
| URL | https://arxiv.org/abs/quant-ph/0212103 |
| Journal | Acta Phys. Hung. B20 (2004) 29-34 |
Abstract
In 1983, Wigner outlined a modified Schr\"odinger--von-Neumann equation of motion for macroobjects, to describe their typical coupling to the environment. This equation has become a principal model of environmental decoherence which is beleived responsible for the emergence ofclassicality in macroscopic quantum systems. Typically, this happens gradually and asymptotically after a certain characteristic decoherence time. For the Wigner-function, however, one can prove that it evolves perfectly into a classical (non-negative) phase space distribution after a finite time of decoherence.
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"abstract": "In 1983, Wigner outlined a modified Schr\\\"odinger--von-Neumann equation of\nmotion for macroobjects, to describe their typical coupling to the environment.\nThis equation has become a principal model of environmental decoherence which\nis beleived responsible for the emergence ofclassicality in macroscopic quantum\nsystems. Typically, this happens gradually and asymptotically after a certain\ncharacteristic decoherence time. For the Wigner-function, however, one can\nprove that it evolves perfectly into a classical (non-negative) phase space\ndistribution after a finite time of decoherence.",
"arxiv_id": "quant-ph/0212103",
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"Lajos Diosi"
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"journal_ref": "Acta Phys. Hung. B20 (2004) 29-34",
"title": "Wigner Centennial: His Function, and Its Environmental Decoherence",
"url": "https://arxiv.org/abs/quant-ph/0212103"
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