dorsal/arxiv
View SchemaDecoherence scenarios from micro- to macroscopic superpositions
| Authors | Walter T. Strunz, Fritz Haake |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0205108 |
| URL | https://arxiv.org/abs/quant-ph/0205108 |
| DOI | 10.1103/PhysRevA.67.022102 |
Abstract
Environment induced decoherence entails the absence of quantum interference phenomena from the macroworld. The loss of coherence between superposed wave packets depends on their separation. The precise temporal course depends on the relative size of the time scales for decoherence and other processes taking place in the open system and its environment. We use the exactly solvable model of an harmonic oscillator coupled to a bath of oscillators to illustrate various decoherence scenarios: These range from exponential golden-rule decay for microscopic superpositions, system-specific decay for larger separations in a crossover regime, and finally universal interaction-dominated decoherence for ever more macroscopic superpositions.
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"abstract": "Environment induced decoherence entails the absence of quantum interference\nphenomena from the macroworld. The loss of coherence between superposed wave\npackets depends on their separation. The precise temporal course depends on the\nrelative size of the time scales for decoherence and other processes taking\nplace in the open system and its environment. We use the exactly solvable model\nof an harmonic oscillator coupled to a bath of oscillators to illustrate\nvarious decoherence scenarios: These range from exponential golden-rule decay\nfor microscopic superpositions, system-specific decay for larger separations in\na crossover regime, and finally universal interaction-dominated decoherence for\never more macroscopic superpositions.",
"arxiv_id": "quant-ph/0205108",
"authors": [
"Walter T. Strunz",
"Fritz Haake"
],
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"quant-ph"
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"doi": "10.1103/PhysRevA.67.022102",
"title": "Decoherence scenarios from micro- to macroscopic superpositions",
"url": "https://arxiv.org/abs/quant-ph/0205108"
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